Merge branch 'DSpace:main' into DA-1766

2025-10-07 01:54:15 +00:00 · 2022-10-24 16:00:03 -05:00
parent 3076f67b70 1c8d538100
commit 4157f4e9e1
121 changed files with 3374 additions and 3516 deletions
--- a/.github/workflows/issue_opened.yml
+++ b/.github/workflows/issue_opened.yml
@@ -10,20 +10,16 @@ jobs:
    runs-on: ubuntu-latest
    steps:
    # Add the new issue to a project board, if it needs triage
-    # See https://github.com/marketplace/actions/create-project-card-action
-    - name: Add issue to project board
+    # See https://github.com/actions/add-to-project
+    - name: Add issue to triage board
      # Only add to project board if issue is flagged as "needs triage" or has no labels
      # NOTE: By default we flag new issues as "needs triage" in our issue template
      if: (contains(github.event.issue.labels.*.name, 'needs triage') || join(github.event.issue.labels.*.name) == '')
-      uses: technote-space/create-project-card-action@v1
+      uses: actions/add-to-project@v0.3.0
      # Note, the authentication token below is an ORG level Secret. 
-      # It must be created/recreated manually via a personal access token with "public_repo" and "admin:org" permissions
+      # It must be created/recreated manually via a personal access token with admin:org, project, public_repo permissions
      # See: https://docs.github.com/en/actions/configuring-and-managing-workflows/authenticating-with-the-github_token#permissions-for-the-github_token
      # This is necessary because the "DSpace Backlog" project is an org level project (i.e. not repo specific)
      with:
-        GITHUB_TOKEN: ${{ secrets.ORG_PROJECT_TOKEN }}
-        PROJECT: DSpace Backlog
-        COLUMN: Triage
-        CHECK_ORG_PROJECT: true
-      # Ignore errors
-      continue-on-error: true
+        github-token: ${{ secrets.TRIAGE_PROJECT_TOKEN }}
+        project-url: https://github.com/orgs/DSpace/projects/24
--- a/README.md
+++ b/README.md
@@ -351,7 +351,7 @@ Documentation

 Official DSpace documentation is available in the DSpace wiki at https://wiki.lyrasis.org/display/DSDOC7x/

-Some UI specific configuration documentation is also found in the [`./docs`](docs) folder of htis codebase.
+Some UI specific configuration documentation is also found in the [`./docs`](docs) folder of this codebase.

 ### Building code documentation

--- a/config/config.example.yml
+++ b/config/config.example.yml
@@ -14,6 +14,8 @@ ui:
  rateLimiter:
    windowMs: 60000 # 1 minute
    max: 500 # limit each IP to 500 requests per windowMs
+  # Trust X-FORWARDED-* headers from proxies (default = true)
+  useProxies: true

 # The REST API server settings
 # NOTE: these settings define which (publicly available) REST API to use. They are usually
@@ -135,9 +137,6 @@ languages:
  - code: lv
    label: Latviešu
    active: true
-  - code: hi
-    label: Hindi
-    active: true
  - code: hu
    label: Magyar
    active: true
@@ -165,6 +164,9 @@ languages:
  - code: bn
    label: বাংলা
    active: true
+  - code: hi
+    label: हिंदी
+    active: true
  - code: el
    label: Ελληνικά
    active: true
@@ -288,3 +290,9 @@ mediaViewer:
 info:
  enableEndUserAgreement: true
  enablePrivacyStatement: true
+
+# Whether to enable Markdown (https://commonmark.org/) and MathJax (https://www.mathjax.org/)
+# display in supported metadata fields. By default, only dc.description.abstract is supported.
+markdown:
+  enabled: false
+  mathjax: false
--- a/cypress/support/index.ts
+++ b/cypress/support/index.ts
@@ -24,7 +24,7 @@ import 'cypress-axe';
 beforeEach(() => {
    // Pre-agree to all Klaro cookies by setting the klaro-anonymous cookie
    // This just ensures it doesn't get in the way of matching other objects in the page.
-    cy.setCookie('klaro-anonymous', '{%22authentication%22:true%2C%22preferences%22:true%2C%22acknowledgement%22:true%2C%22google-analytics%22:true}');
+    cy.setCookie('klaro-anonymous', '{%22authentication%22:true%2C%22preferences%22:true%2C%22acknowledgement%22:true%2C%22google-analytics%22:true%2C%22google-recaptcha%22:true}');
 });

 // For better stability between tests, we visit "about:blank" (i.e. blank page) after each test.
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "dspace-angular",
-  "version": "7.4.0-next",
+  "version": "7.5.0-next",
  "scripts": {
    "ng": "ng",
    "config:watch": "nodemon",
@@ -78,6 +78,7 @@
    "@nguniversal/express-engine": "^13.0.2",
    "@ngx-translate/core": "^13.0.0",
    "@nicky-lenaers/ngx-scroll-to": "^9.0.0",
+    "@types/grecaptcha": "^3.0.4",
    "angular-idle-preload": "3.0.0",
    "angulartics2": "^12.0.0",
    "axios": "^0.27.2",
--- a/src/app/access-control/group-registry/group-form/members-list/members-list.component.ts
+++ b/src/app/access-control/group-registry/group-form/members-list/members-list.component.ts
@@ -209,7 +209,6 @@ export class MembersListComponent implements OnInit, OnDestroy {
      if (activeGroup != null) {
        const response = this.groupDataService.deleteMemberFromGroup(activeGroup, ePerson.eperson);
        this.showNotifications('deleteMember', response, ePerson.eperson.name, activeGroup);
-        this.search({ scope: this.currentSearchScope, query: this.currentSearchQuery });
      } else {
        this.notificationsService.error(this.translateService.get(this.messagePrefix + '.notification.failure.noActiveGroup'));
      }
@@ -315,7 +314,6 @@ export class MembersListComponent implements OnInit, OnDestroy {
    response.pipe(getFirstCompletedRemoteData()).subscribe((rd: RemoteData<any>) => {
      if (rd.hasSucceeded) {
        this.notificationsService.success(this.translateService.get(this.messagePrefix + '.notification.success.' + messageSuffix, { name: nameObject }));
-        this.ePersonDataService.clearLinkRequests(activeGroup._links.epersons.href);
      } else {
        this.notificationsService.error(this.translateService.get(this.messagePrefix + '.notification.failure.' + messageSuffix, { name: nameObject }));
      }
--- a/src/app/admin/admin-registries/bitstream-formats/bitstream-formats.component.spec.ts
+++ b/src/app/admin/admin-registries/bitstream-formats/bitstream-formats.component.spec.ts
@@ -20,14 +20,12 @@ import { TestScheduler } from 'rxjs/testing';
 import {
  createNoContentRemoteDataObject$,
  createSuccessfulRemoteDataObject,
-  createSuccessfulRemoteDataObject$
+  createSuccessfulRemoteDataObject$,
+  createFailedRemoteDataObject$
 } from '../../../shared/remote-data.utils';
 import { createPaginatedList } from '../../../shared/testing/utils.test';
-import { PaginationComponentOptions } from '../../../shared/pagination/pagination-component-options.model';
-import { SortDirection, SortOptions } from '../../../core/cache/models/sort-options.model';
 import { PaginationService } from '../../../core/pagination/pagination.service';
 import { PaginationServiceStub } from '../../../shared/testing/pagination-service.stub';
-import { FindListOptions } from '../../../core/data/find-list-options.model';

 describe('BitstreamFormatsComponent', () => {
  let comp: BitstreamFormatsComponent;
@@ -85,10 +83,6 @@ describe('BitstreamFormatsComponent', () => {
  ];
  const mockFormatsRD = createSuccessfulRemoteDataObject(createPaginatedList(mockFormatsList));

-  const pagination = Object.assign(new PaginationComponentOptions(), { currentPage: 1, pageSize: 20 });
-  const sort = new SortOptions('score', SortDirection.DESC);
-  const findlistOptions = Object.assign(new FindListOptions(), { currentPage: 1, elementsPerPage: 20 });
-
  const initAsync = () => {
    notificationsServiceStub = new NotificationsServiceStub();

@@ -246,7 +240,7 @@ describe('BitstreamFormatsComponent', () => {
    ));

    beforeEach(initBeforeEach);
-    it('should clear bitstream formats  ', () => {
+    it('should clear bitstream formats and show a success notification', () => {
      comp.deleteFormats();

      expect(bitstreamFormatService.clearBitStreamFormatRequests).toHaveBeenCalled();
@@ -275,7 +269,7 @@ describe('BitstreamFormatsComponent', () => {
          selectBitstreamFormat: {},
          deselectBitstreamFormat: {},
          deselectAllBitstreamFormats: {},
-          delete: observableOf(false),
+          delete: createFailedRemoteDataObject$(),
          clearBitStreamFormatRequests: observableOf('cleared')
        });

@@ -295,7 +289,7 @@ describe('BitstreamFormatsComponent', () => {
    ));

    beforeEach(initBeforeEach);
-    it('should clear bitstream formats  ', () => {
+    it('should clear bitstream formats and show an error notification', () => {
      comp.deleteFormats();

      expect(bitstreamFormatService.clearBitStreamFormatRequests).toHaveBeenCalled();
--- a/src/app/admin/admin-registries/bitstream-formats/bitstream-formats.component.ts
+++ b/src/app/admin/admin-registries/bitstream-formats/bitstream-formats.component.ts
@@ -5,7 +5,7 @@ import { PaginatedList } from '../../../core/data/paginated-list.model';
 import { PaginationComponentOptions } from '../../../shared/pagination/pagination-component-options.model';
 import { BitstreamFormat } from '../../../core/shared/bitstream-format.model';
 import { BitstreamFormatDataService } from '../../../core/data/bitstream-format-data.service';
-import { map, switchMap, take } from 'rxjs/operators';
+import { map, mergeMap, switchMap, take, toArray } from 'rxjs/operators';
 import { hasValue } from '../../../shared/empty.util';
 import { NotificationsService } from '../../../shared/notifications/notifications.service';
 import { Router } from '@angular/router';
@@ -13,6 +13,7 @@ import { TranslateService } from '@ngx-translate/core';
 import { NoContent } from '../../../core/shared/NoContent.model';
 import { PaginationService } from '../../../core/pagination/pagination.service';
 import { FindListOptions } from '../../../core/data/find-list-options.model';
+import { getFirstCompletedRemoteData } from '../../../core/shared/operators';

 /**
 * This component renders a list of bitstream formats
@@ -58,18 +59,26 @@ export class BitstreamFormatsComponent implements OnInit, OnDestroy {
   * Deletes the currently selected formats from the registry and updates the presented list
   */
  deleteFormats() {
-    this.bitstreamFormatService.clearBitStreamFormatRequests().subscribe();
-    this.bitstreamFormatService.getSelectedBitstreamFormats().pipe(take(1)).subscribe(
-      (formats) => {
-        const tasks$ = [];
-        for (const format of formats) {
-          if (hasValue(format.id)) {
-            tasks$.push(this.bitstreamFormatService.delete(format.id).pipe(map((response: RemoteData<NoContent>) => response.hasSucceeded)));
-          }
-        }
-        zip(...tasks$).subscribe((results: boolean[]) => {
+    this.bitstreamFormatService.clearBitStreamFormatRequests();
+    this.bitstreamFormatService.getSelectedBitstreamFormats().pipe(
+      take(1),
+      // emit all formats in the array one at a time
+      mergeMap((formats: BitstreamFormat[]) => formats),
+      // delete each format
+      mergeMap((format: BitstreamFormat) => this.bitstreamFormatService.delete(format.id).pipe(
+        // wait for each response to come back
+        getFirstCompletedRemoteData(),
+        // return a boolean to indicate whether a response succeeded
+        map((response: RemoteData<NoContent>) => response.hasSucceeded),
+      )),
+      // wait for all responses to come in and return them as a single array
+      toArray()
+    ).subscribe((results: boolean[]) => {
+      // Count the number of succeeded and failed deletions
      const successResponses = results.filter((result: boolean) => result);
      const failedResponses = results.filter((result: boolean) => !result);
+
+      // Show a notification indicating the number of succeeded and failed deletions
      if (successResponses.length > 0) {
        this.showNotification(true, successResponses.length);
      }
@@ -77,13 +86,13 @@ export class BitstreamFormatsComponent implements OnInit, OnDestroy {
        this.showNotification(false, failedResponses.length);
      }

+      // reset the selection
      this.deselectAll();

+      // reload the page
      this.paginationService.resetPage(this.pageConfig.id);
    });
  }
-    );
-  }

  /**
   * Deselects all selecetd bitstream formats
--- a/src/app/admin/admin-sidebar/admin-sidebar-section/admin-sidebar-section.component.spec.ts
+++ b/src/app/admin/admin-sidebar/admin-sidebar-section/admin-sidebar-section.component.spec.ts
@@ -2,7 +2,7 @@ import { ComponentFixture, TestBed, waitForAsync } from '@angular/core/testing';

 import { MenuService } from '../../../shared/menu/menu.service';
 import { MenuServiceStub } from '../../../shared/testing/menu-service.stub';
-import { CSSVariableService } from '../../../shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from '../../../shared/sass-helper/css-variable.service';
 import { CSSVariableServiceStub } from '../../../shared/testing/css-variable-service.stub';
 import { Component } from '@angular/core';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';
--- a/src/app/admin/admin-sidebar/admin-sidebar.component.spec.ts
+++ b/src/app/admin/admin-sidebar/admin-sidebar.component.spec.ts
@@ -6,7 +6,7 @@ import { ScriptDataService } from '../../core/data/processes/script-data.service
 import { AdminSidebarComponent } from './admin-sidebar.component';
 import { MenuService } from '../../shared/menu/menu.service';
 import { MenuServiceStub } from '../../shared/testing/menu-service.stub';
-import { CSSVariableService } from '../../shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from '../../shared/sass-helper/css-variable.service';
 import { CSSVariableServiceStub } from '../../shared/testing/css-variable-service.stub';
 import { AuthServiceStub } from '../../shared/testing/auth-service.stub';
 import { AuthService } from '../../core/auth/auth.service';
--- a/src/app/admin/admin-sidebar/admin-sidebar.component.ts
+++ b/src/app/admin/admin-sidebar/admin-sidebar.component.ts
@@ -5,7 +5,7 @@ import { AuthService } from '../../core/auth/auth.service';
 import { slideSidebar } from '../../shared/animations/slide';
 import { MenuComponent } from '../../shared/menu/menu.component';
 import { MenuService } from '../../shared/menu/menu.service';
-import { CSSVariableService } from '../../shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from '../../shared/sass-helper/css-variable.service';
 import { AuthorizationDataService } from '../../core/data/feature-authorization/authorization-data.service';
 import { MenuID } from '../../shared/menu/menu-id.model';
 import { ActivatedRoute } from '@angular/router';
@@ -69,7 +69,7 @@ export class AdminSidebarComponent extends MenuComponent implements OnInit {
   */
  ngOnInit(): void {
    super.ngOnInit();
-    this.sidebarWidth = this.variableService.getVariable('sidebarItemsWidth');
+    this.sidebarWidth = this.variableService.getVariable('--ds-sidebar-items-width');
    this.authService.isAuthenticated()
      .subscribe((loggedIn: boolean) => {
        if (loggedIn) {
--- a/src/app/admin/admin-sidebar/expandable-admin-sidebar-section/expandable-admin-sidebar-section.component.spec.ts
+++ b/src/app/admin/admin-sidebar/expandable-admin-sidebar-section/expandable-admin-sidebar-section.component.spec.ts
@@ -3,7 +3,7 @@ import { ComponentFixture, TestBed, waitForAsync } from '@angular/core/testing';
 import { ExpandableAdminSidebarSectionComponent } from './expandable-admin-sidebar-section.component';
 import { MenuService } from '../../../shared/menu/menu.service';
 import { MenuServiceStub } from '../../../shared/testing/menu-service.stub';
-import { CSSVariableService } from '../../../shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from '../../../shared/sass-helper/css-variable.service';
 import { CSSVariableServiceStub } from '../../../shared/testing/css-variable-service.stub';
 import { of as observableOf } from 'rxjs';
 import { Component } from '@angular/core';
--- a/src/app/admin/admin-sidebar/expandable-admin-sidebar-section/expandable-admin-sidebar-section.component.ts
+++ b/src/app/admin/admin-sidebar/expandable-admin-sidebar-section/expandable-admin-sidebar-section.component.ts
@@ -2,7 +2,7 @@ import { Component, Inject, Injector, OnInit } from '@angular/core';
 import { rotate } from '../../../shared/animations/rotate';
 import { AdminSidebarSectionComponent } from '../admin-sidebar-section/admin-sidebar-section.component';
 import { slide } from '../../../shared/animations/slide';
-import { CSSVariableService } from '../../../shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from '../../../shared/sass-helper/css-variable.service';
 import { bgColor } from '../../../shared/animations/bgColor';
 import { MenuService } from '../../../shared/menu/menu.service';
 import { combineLatest as combineLatestObservable, Observable } from 'rxjs';
@@ -65,7 +65,7 @@ export class ExpandableAdminSidebarSectionComponent extends AdminSidebarSectionC
   */
  ngOnInit(): void {
    super.ngOnInit();
-    this.sidebarActiveBg = this.variableService.getVariable('adminSidebarActiveBg');
+    this.sidebarActiveBg = this.variableService.getVariable('--ds-admin-sidebar-active-bg');
    this.sidebarCollapsed = this.menuService.isMenuCollapsed(this.menuID);
    this.sidebarPreviewCollapsed = this.menuService.isMenuPreviewCollapsed(this.menuID);
    this.expanded = combineLatestObservable(this.active, this.sidebarCollapsed, this.sidebarPreviewCollapsed)
--- a/src/app/app.component.spec.ts
+++ b/src/app/app.component.spec.ts
@@ -18,7 +18,7 @@ import { AngularticsProviderMock } from './shared/mocks/angulartics-provider.ser
 import { AuthServiceMock } from './shared/mocks/auth.service.mock';
 import { AuthService } from './core/auth/auth.service';
 import { MenuService } from './shared/menu/menu.service';
-import { CSSVariableService } from './shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from './shared/sass-helper/css-variable.service';
 import { CSSVariableServiceStub } from './shared/testing/css-variable-service.stub';
 import { MenuServiceStub } from './shared/testing/menu-service.stub';
 import { HostWindowService } from './shared/host-window.service';
--- a/src/app/app.component.ts
+++ b/src/app/app.component.ts
@@ -25,7 +25,7 @@ import { HostWindowState } from './shared/search/host-window.reducer';
 import { NativeWindowRef, NativeWindowService } from './core/services/window.service';
 import { isAuthenticationBlocking } from './core/auth/selectors';
 import { AuthService } from './core/auth/auth.service';
-import { CSSVariableService } from './shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from './shared/sass-helper/css-variable.service';
 import { environment } from '../environments/environment';
 import { models } from './core/core.module';
 import { ThemeService } from './shared/theme-support/theme.service';
@@ -110,18 +110,8 @@ export class AppComponent implements OnInit, AfterViewInit {
  }

  private storeCSSVariables() {
-    this.cssService.addCSSVariable('xlMin', '1200px');
-    this.cssService.addCSSVariable('mdMin', '768px');
-    this.cssService.addCSSVariable('lgMin', '576px');
-    this.cssService.addCSSVariable('smMin', '0');
-    this.cssService.addCSSVariable('adminSidebarActiveBg', '#0f1b28');
-    this.cssService.addCSSVariable('sidebarItemsWidth', '250px');
-    this.cssService.addCSSVariable('collapsedSidebarWidth', '53.234px');
-    this.cssService.addCSSVariable('totalSidebarWidth', '303.234px');
-    // const vars = variables.locals || {};
-    // Object.keys(vars).forEach((name: string) => {
-    //   this.cssService.addCSSVariable(name, vars[name]);
-    // })
+    this.cssService.clearCSSVariables();
+    this.cssService.addCSSVariables(this.cssService.getCSSVariablesFromStylesheets(this.document));
  }

  ngAfterViewInit() {
--- a/src/app/app.reducer.ts
+++ b/src/app/app.reducer.ts
@@ -35,7 +35,7 @@ import {
  ObjectSelectionListState,
  objectSelectionReducer
 } from './shared/object-select/object-select.reducer';
-import { cssVariablesReducer, CSSVariablesState } from './shared/sass-helper/sass-helper.reducer';
+import { cssVariablesReducer, CSSVariablesState } from './shared/sass-helper/css-variable.reducer';

 import { hostWindowReducer, HostWindowState } from './shared/search/host-window.reducer';
 import {
--- a/src/app/core/core.module.ts
+++ b/src/app/core/core.module.ts
@@ -23,7 +23,6 @@ import { NotificationsService } from '../shared/notifications/notifications.serv
 import { SelectableListService } from '../shared/object-list/selectable-list/selectable-list.service';
 import { ObjectSelectService } from '../shared/object-select/object-select.service';
 import { PaginationComponentOptions } from '../shared/pagination/pagination-component-options.model';
-import { CSSVariableService } from '../shared/sass-helper/sass-helper.service';
 import { SidebarService } from '../shared/sidebar/sidebar.service';
 import { UploaderService } from '../shared/uploader/uploader.service';
 import { SectionFormOperationsService } from '../submission/sections/form/section-form-operations.service';
@@ -257,7 +256,6 @@ const PROVIDERS = [
  DefaultChangeAnalyzer,
  ArrayMoveChangeAnalyzer,
  ObjectSelectService,
-  CSSVariableService,
  MenuService,
  ObjectUpdatesService,
  SearchService,
--- a/src/app/core/data/base/data-service.decorator.spec.ts
+++ b/src/app/core/data/base/data-service.decorator.spec.ts
@@ -10,6 +10,7 @@ import { ResourceType } from '../../shared/resource-type';
 import { BaseDataService } from './base-data.service';
 import { HALDataService } from './hal-data-service.interface';
 import { dataService, getDataServiceFor } from './data-service.decorator';
+import { v4 as uuidv4 } from 'uuid';

 class TestService extends BaseDataService<any> {
 }
@@ -28,7 +29,7 @@ let testType;

 describe('@dataService/getDataServiceFor', () => {
  beforeEach(() => {
-    testType = new ResourceType('testType-' + new Date().getTime());
+    testType = new ResourceType(`testType-${uuidv4()}`);
  });

  it('should register a resourcetype for a dataservice', () => {
--- a/src/app/core/data/eperson-registration.service.spec.ts
+++ b/src/app/core/data/eperson-registration.service.spec.ts
@@ -9,6 +9,8 @@ import { createSuccessfulRemoteDataObject } from '../../shared/remote-data.utils
 import { of as observableOf } from 'rxjs';
 import { TestScheduler } from 'rxjs/testing';
 import { RequestEntry } from './request-entry.model';
+import { HttpHeaders } from '@angular/common/http';
+import { HttpOptions } from '../dspace-rest/dspace-rest.service';

 describe('EpersonRegistrationService', () => {
  let testScheduler;
@@ -79,8 +81,23 @@ describe('EpersonRegistrationService', () => {
    it('should send an email registration', () => {

      const expected = service.registerEmail('test@mail.org');
+      let headers = new HttpHeaders();
+      const options: HttpOptions = Object.create({});
+      options.headers = headers;

-      expect(requestService.send).toHaveBeenCalledWith(new PostRequest('request-id', 'rest-url/registrations', registration));
+      expect(requestService.send).toHaveBeenCalledWith(new PostRequest('request-id', 'rest-url/registrations', registration, options));
+      expect(expected).toBeObservable(cold('(a|)', { a: rd }));
+    });
+
+    it('should send an email registration with captcha', () => {
+
+      const expected = service.registerEmail('test@mail.org', 'afreshcaptchatoken');
+      let headers = new HttpHeaders();
+      const options: HttpOptions = Object.create({});
+      headers = headers.append('x-recaptcha-token', 'afreshcaptchatoken');
+      options.headers = headers;
+
+      expect(requestService.send).toHaveBeenCalledWith(new PostRequest('request-id', 'rest-url/registrations', registration, options));
      expect(expected).toBeObservable(cold('(a|)', { a: rd }));
    });
  });
--- a/src/app/core/data/eperson-registration.service.ts
+++ b/src/app/core/data/eperson-registration.service.ts
@@ -3,15 +3,17 @@ import { RequestService } from './request.service';
 import { HALEndpointService } from '../shared/hal-endpoint.service';
 import { GetRequest, PostRequest } from './request.models';
 import { Observable } from 'rxjs';
-import { filter, find, map, skipWhile } from 'rxjs/operators';
+import { filter, find, map } from 'rxjs/operators';
 import { hasValue, isNotEmpty } from '../../shared/empty.util';
 import { Registration } from '../shared/registration.model';
-import { getFirstCompletedRemoteData, getFirstSucceededRemoteData } from '../shared/operators';
+import { getFirstCompletedRemoteData } from '../shared/operators';
 import { ResponseParsingService } from './parsing.service';
 import { GenericConstructor } from '../shared/generic-constructor';
 import { RegistrationResponseParsingService } from './registration-response-parsing.service';
 import { RemoteData } from './remote-data';
 import { RemoteDataBuildService } from '../cache/builders/remote-data-build.service';
+import { HttpOptions } from '../dspace-rest/dspace-rest.service';
+import { HttpHeaders } from '@angular/common/http';

@Injectable({
  providedIn: 'root',
@@ -51,8 +53,9 @@ export class EpersonRegistrationService {
  /**
   * Register a new email address
   * @param email
+   * @param captchaToken the value of x-recaptcha-token header
   */
-  registerEmail(email: string): Observable<RemoteData<Registration>> {
+  registerEmail(email: string, captchaToken: string = null): Observable<RemoteData<Registration>> {
    const registration = new Registration();
    registration.email = email;

@@ -60,10 +63,17 @@ export class EpersonRegistrationService {

    const href$ = this.getRegistrationEndpoint();

+    const options: HttpOptions = Object.create({});
+    let headers = new HttpHeaders();
+    if (captchaToken) {
+      headers = headers.append('x-recaptcha-token', captchaToken);
+    }
+    options.headers = headers;
+
    href$.pipe(
      find((href: string) => hasValue(href)),
      map((href: string) => {
-        const request = new PostRequest(requestId, href, registration);
+        const request = new PostRequest(requestId, href, registration, options);
        this.requestService.send(request);
      })
    ).subscribe();
--- a/src/app/core/end-user-agreement/end-user-agreement-current-user.guard.spec.ts
+++ b/src/app/core/end-user-agreement/end-user-agreement-current-user.guard.spec.ts
@@ -50,7 +50,6 @@ describe('EndUserAgreementGuard', () => {
      it('should return true', (done) => {
        environment.info.enableEndUserAgreement = false;
        guard.canActivate(undefined, Object.assign({ url: 'redirect' })).subscribe((result) => {
-          console.log(result);
          expect(result).toEqual(true);
          done();
        });
--- a/src/app/core/eperson/group-data.service.spec.ts
+++ b/src/app/core/eperson/group-data.service.spec.ts
@@ -191,9 +191,7 @@ describe('GroupDataService', () => {
      callback();

      expect(objectCache.getByHref).toHaveBeenCalledWith(EPersonMock2._links.self.href);
-      expect(objectCache.getByHref).toHaveBeenCalledWith(GroupMock._links.self.href);
-      expect(requestService.setStaleByUUID).toHaveBeenCalledTimes(4);
-      expect(requestService.setStaleByUUID).toHaveBeenCalledWith('request1');
+      expect(requestService.setStaleByUUID).toHaveBeenCalledTimes(2);
      expect(requestService.setStaleByUUID).toHaveBeenCalledWith('request2');
    });
  });
@@ -218,9 +216,7 @@ describe('GroupDataService', () => {
      callback();

      expect(objectCache.getByHref).toHaveBeenCalledWith(EPersonMock._links.self.href);
-      expect(objectCache.getByHref).toHaveBeenCalledWith(GroupMock._links.self.href);
-      expect(requestService.setStaleByUUID).toHaveBeenCalledTimes(4);
-      expect(requestService.setStaleByUUID).toHaveBeenCalledWith('request1');
+      expect(requestService.setStaleByUUID).toHaveBeenCalledTimes(2);
      expect(requestService.setStaleByUUID).toHaveBeenCalledWith('request2');
    });
  });
--- a/src/app/core/eperson/group-data.service.ts
+++ b/src/app/core/eperson/group-data.service.ts
@@ -179,7 +179,6 @@ export class GroupDataService extends IdentifiableDataService<Group> implements

    return this.rdbService.buildFromRequestUUIDAndAwait(requestId, () => observableZip(
      this.invalidateByHref(ePerson._links.self.href),
-      this.invalidateByHref(activeGroup._links.self.href),
      this.requestService.setStaleByHrefSubstring(ePerson._links.groups.href).pipe(take(1)),
      this.requestService.setStaleByHrefSubstring(activeGroup._links.epersons.href).pipe(take(1)),
    ));
@@ -198,7 +197,6 @@ export class GroupDataService extends IdentifiableDataService<Group> implements

    return this.rdbService.buildFromRequestUUIDAndAwait(requestId, () => observableZip(
      this.invalidateByHref(ePerson._links.self.href),
-      this.invalidateByHref(activeGroup._links.self.href),
      this.requestService.setStaleByHrefSubstring(ePerson._links.groups.href).pipe(take(1)),
      this.requestService.setStaleByHrefSubstring(activeGroup._links.epersons.href).pipe(take(1)),
    ));
--- a/src/app/core/google-recaptcha/google-recaptcha.module.ts
+++ b/src/app/core/google-recaptcha/google-recaptcha.module.ts
@@ -0,0 +1,25 @@
+import { CommonModule } from '@angular/common';
+import { NgModule } from '@angular/core';
+import { GoogleRecaptchaComponent } from '../../shared/google-recaptcha/google-recaptcha.component';
+
+import { GoogleRecaptchaService } from './google-recaptcha.service';
+
+const PROVIDERS = [
+  GoogleRecaptchaService
+];
+
+const COMPONENTS = [
+  GoogleRecaptchaComponent
+];
+
+@NgModule({
+  imports: [ CommonModule ],
+  providers: [...PROVIDERS],
+  declarations: [...COMPONENTS],
+  exports: [...COMPONENTS]
+})
+
+/**
+ * This module handles google recaptcha functionalities
+ */
+export class GoogleRecaptchaModule {}
--- a/src/app/core/google-recaptcha/google-recaptcha.service.spec.ts
+++ b/src/app/core/google-recaptcha/google-recaptcha.service.spec.ts
@@ -0,0 +1,57 @@
+import { GoogleRecaptchaService } from './google-recaptcha.service';
+import { of as observableOf } from 'rxjs';
+import { createSuccessfulRemoteDataObject$ } from '../../shared/remote-data.utils';
+import { NativeWindowRef } from '../services/window.service';
+
+describe('GoogleRecaptchaService', () => {
+  let service: GoogleRecaptchaService;
+
+  let rendererFactory2;
+  let configurationDataService;
+  let spy: jasmine.Spy;
+  let scriptElementMock: any;
+  let cookieService;
+  let window;
+  const innerHTMLTestValue = 'mock-script-inner-html';
+  const document = { documentElement: { lang: 'en' } } as Document;
+  scriptElementMock = {
+    set innerHTML(newVal) { /* noop */ },
+    get innerHTML() { return innerHTMLTestValue; }
+  };
+
+  function init() {
+    window = new NativeWindowRef();
+    rendererFactory2 = jasmine.createSpyObj('rendererFactory2', {
+      createRenderer: observableOf('googleRecaptchaToken'),
+      createElement: scriptElementMock
+    });
+    configurationDataService = jasmine.createSpyObj('configurationDataService', {
+      findByPropertyName: createSuccessfulRemoteDataObject$({ values: ['googleRecaptchaToken'] })
+    });
+    cookieService = jasmine.createSpyObj('cookieService', {
+      get: '{%22token_item%22:true%2C%22impersonation%22:true%2C%22redirect%22:true%2C%22language%22:true%2C%22klaro%22:true%2C%22has_agreed_end_user%22:true%2C%22google-analytics%22:true}',
+      set: () => {
+        /* empty */
+      }
+    });
+    service = new GoogleRecaptchaService(cookieService, document, window, rendererFactory2, configurationDataService);
+  }
+
+  beforeEach(() => {
+    init();
+  });
+
+  describe('getRecaptchaToken', () => {
+    let result;
+
+    beforeEach(() => {
+      spy = spyOn(service, 'getRecaptchaToken').and.stub();
+    });
+
+    it('should send a Request with action', () => {
+      service.getRecaptchaToken('test');
+      expect(spy).toHaveBeenCalledWith('test');
+    });
+
+  });
+});
--- a/src/app/core/google-recaptcha/google-recaptcha.service.ts
+++ b/src/app/core/google-recaptcha/google-recaptcha.service.ts
@@ -0,0 +1,176 @@
+import { Inject, Injectable, Renderer2, RendererFactory2 } from '@angular/core';
+import { getFirstCompletedRemoteData } from '../shared/operators';
+import { ConfigurationProperty } from '../shared/configuration-property.model';
+import { isNotEmpty } from '../../shared/empty.util';
+import { DOCUMENT } from '@angular/common';
+import { ConfigurationDataService } from '../data/configuration-data.service';
+import { RemoteData } from '../data/remote-data';
+import { map, switchMap, take } from 'rxjs/operators';
+import { BehaviorSubject, combineLatest, Observable, of } from 'rxjs';
+import { CookieService } from '../services/cookie.service';
+import { NativeWindowRef, NativeWindowService } from '../services/window.service';
+
+export const CAPTCHA_COOKIE = '_GRECAPTCHA';
+export const CAPTCHA_NAME = 'google-recaptcha';
+
+/**
+ * A GoogleRecaptchaService used to send action and get a token from REST
+ */
+@Injectable()
+export class GoogleRecaptchaService {
+
+  private renderer: Renderer2;
+
+  /**
+   * A Google Recaptcha version
+   */
+  private captchaVersionSubject$ = new BehaviorSubject<string>(null);
+
+  /**
+   * The Google Recaptcha Key
+   */
+  private captchaKeySubject$ = new BehaviorSubject<string>(null);
+
+  /**
+   * The Google Recaptcha mode
+   */
+  private captchaModeSubject$ = new BehaviorSubject<string>(null);
+
+  captchaKey(): Observable<string> {
+    return this.captchaKeySubject$.asObservable();
+  }
+
+  captchaMode(): Observable<string> {
+    return this.captchaModeSubject$.asObservable();
+  }
+
+  captchaVersion(): Observable<string> {
+    return this.captchaVersionSubject$.asObservable();
+  }
+
+  constructor(
+    private cookieService: CookieService,
+    @Inject(DOCUMENT) private _document: Document,
+    @Inject(NativeWindowService) private _window: NativeWindowRef,
+    rendererFactory: RendererFactory2,
+    private configService: ConfigurationDataService,
+  ) {
+    if (this._window.nativeWindow) {
+      this._window.nativeWindow.refreshCaptchaScript = this.refreshCaptchaScript;
+    }
+    this.renderer = rendererFactory.createRenderer(null, null);
+    const registrationVerification$ = this.configService.findByPropertyName('registration.verification.enabled').pipe(
+      take(1),
+      getFirstCompletedRemoteData(),
+      map((res: RemoteData<ConfigurationProperty>) => {
+        return res.hasSucceeded && res.payload && isNotEmpty(res.payload.values) && res.payload.values[0].toLowerCase() === 'true';
+      })
+    );
+    registrationVerification$.subscribe(registrationVerification => {
+      if (registrationVerification) {
+        this.loadRecaptchaProperties();
+      }
+    });
+  }
+
+  loadRecaptchaProperties() {
+    const recaptchaKeyRD$ = this.configService.findByPropertyName('google.recaptcha.key.site').pipe(
+      getFirstCompletedRemoteData(),
+    );
+    const recaptchaVersionRD$ = this.configService.findByPropertyName('google.recaptcha.version').pipe(
+      getFirstCompletedRemoteData(),
+    );
+    const recaptchaModeRD$ = this.configService.findByPropertyName('google.recaptcha.mode').pipe(
+      getFirstCompletedRemoteData(),
+    );
+    combineLatest([recaptchaVersionRD$, recaptchaModeRD$, recaptchaKeyRD$]).subscribe(([recaptchaVersionRD, recaptchaModeRD, recaptchaKeyRD]) => {
+
+      if (
+        this.cookieService.get('klaro-anonymous') && this.cookieService.get('klaro-anonymous')[CAPTCHA_NAME] &&
+        recaptchaKeyRD.hasSucceeded && recaptchaVersionRD.hasSucceeded &&
+        isNotEmpty(recaptchaVersionRD.payload?.values) && isNotEmpty(recaptchaKeyRD.payload?.values)
+      ) {
+        const key = recaptchaKeyRD.payload?.values[0];
+        const version = recaptchaVersionRD.payload?.values[0];
+        this.captchaKeySubject$.next(key);
+        this.captchaVersionSubject$.next(version);
+
+        let captchaUrl;
+        switch (version) {
+          case 'v3':
+            if (recaptchaKeyRD.hasSucceeded && isNotEmpty(recaptchaKeyRD.payload?.values)) {
+              captchaUrl = this.buildCaptchaUrl(key);
+              this.captchaModeSubject$.next('invisible');
+            }
+            break;
+          case 'v2':
+            if (recaptchaModeRD.hasSucceeded && isNotEmpty(recaptchaModeRD.payload?.values)) {
+              captchaUrl = this.buildCaptchaUrl();
+              this.captchaModeSubject$.next(recaptchaModeRD.payload?.values[0]);
+            }
+            break;
+          default:
+          // TODO handle error
+        }
+        if (captchaUrl) {
+          this.loadScript(captchaUrl);
+        }
+      }
+    });
+  }
+
+  /**
+   * Returns an observable of string
+   * @param action action is the process type in which used to protect multiple spam REST calls
+   */
+  public getRecaptchaToken(action) {
+    return this.captchaKey().pipe(
+      switchMap((key) => grecaptcha.execute(key, {action: action}))
+    );
+  }
+
+  /**
+   * Returns an observable of string
+   */
+  public executeRecaptcha() {
+    return of(grecaptcha.execute());
+  }
+
+  public getRecaptchaTokenResponse() {
+    return grecaptcha.getResponse();
+  }
+
+  /**
+   * Return the google captcha ur with google captchas api key
+   *
+   * @param key contains a secret key of a google captchas
+   * @returns string which has google captcha url with google captchas key
+   */
+  buildCaptchaUrl(key?: string) {
+    const apiUrl = 'https://www.google.com/recaptcha/api.js';
+    return key ? `${apiUrl}?render=${key}` : apiUrl;
+  }
+
+  /**
+   * Append the google captchas script to the document
+   *
+   * @param url contains a script url which will be loaded into page
+   * @returns A promise
+   */
+  private loadScript(url) {
+    return new Promise((resolve, reject) => {
+      const script = this.renderer.createElement('script');
+      script.type = 'text/javascript';
+      script.src = url;
+      script.text = ``;
+      script.onload = resolve;
+      script.onerror = reject;
+      this.renderer.appendChild(this._document.head, script);
+    });
+  }
+
+  refreshCaptchaScript = () => {
+    this.loadRecaptchaProperties();
+  };
+
+}
--- a/src/app/core/orcid/orcid-auth.service.ts
+++ b/src/app/core/orcid/orcid-auth.service.ts
@@ -111,7 +111,6 @@ export class OrcidAuthService {
    ).pipe(
      map(([authorizeUrl, clientId, scopes]) => {
        const redirectUri = new URLCombiner(this._window.nativeWindow.origin, encodeURIComponent(this.router.url.split('?')[0]));
-        console.log(redirectUri.toString());
        return authorizeUrl.values[0] + '?client_id=' + clientId.values[0]   + '&redirect_uri=' + redirectUri + '&response_type=code&scope='
          + scopes.values.join(' ');
      }));
--- a/src/app/core/shared/registration.model.ts
+++ b/src/app/core/shared/registration.model.ts
@@ -25,5 +25,12 @@ export class Registration implements UnCacheableObject {
   * The token linked to the registration
   */
  token: string;
-
+  /**
+   * The token linked to the registration
+   */
+  groupNames: string[];
+  /**
+   * The token linked to the registration
+   */
+  groups: string[];
 }
--- a/src/app/core/shared/search/search-filter.service.ts
+++ b/src/app/core/shared/search/search-filter.service.ts
@@ -1,4 +1,4 @@
-import { combineLatest as observableCombineLatest, Observable } from 'rxjs';
+import { BehaviorSubject, combineLatest as observableCombineLatest, Observable } from 'rxjs';
 import { distinctUntilChanged, map } from 'rxjs/operators';
 import { Injectable, InjectionToken } from '@angular/core';
 import {
@@ -26,6 +26,7 @@ const filterStateSelector = (state: SearchFiltersState) => state.searchFilter;

 export const FILTER_CONFIG: InjectionToken<SearchFilterConfig> = new InjectionToken<SearchFilterConfig>('filterConfig');
 export const IN_PLACE_SEARCH: InjectionToken<boolean> = new InjectionToken<boolean>('inPlaceSearch');
+export const REFRESH_FILTER: InjectionToken<BehaviorSubject<any>> = new InjectionToken<boolean>('refreshFilters');

 /**
 * Service that performs all actions that have to do with search filters and facets
--- a/src/app/core/shared/search/search.service.ts
+++ b/src/app/core/shared/search/search.service.ts
@@ -13,7 +13,6 @@ import { GenericConstructor } from '../generic-constructor';
 import { HALEndpointService } from '../hal-endpoint.service';
 import { URLCombiner } from '../../url-combiner/url-combiner';
 import { hasValue, hasValueOperator, isNotEmpty } from '../../../shared/empty.util';
-import { SearchOptions } from '../../../shared/search/models/search-options.model';
 import { SearchFilterConfig } from '../../../shared/search/models/search-filter-config.model';
 import { SearchResponseParsingService } from '../../data/search-response-parsing.service';
 import { SearchObjects } from '../../../shared/search/models/search-objects.model';
@@ -264,17 +263,26 @@ export class SearchService implements OnDestroy {
   * @param {number} valuePage The page number of the filter values
   * @param {SearchOptions} searchOptions The search configuration for the current search
   * @param {string} filterQuery The optional query used to filter out filter values
+   * @param useCachedVersionIfAvailable If this is true, the request will only be sent if there's
+   *                                    no valid cached version. Defaults to true
   * @returns {Observable<RemoteData<PaginatedList<FacetValue>>>} Emits the given page of facet values
   */
-  getFacetValuesFor(filterConfig: SearchFilterConfig, valuePage: number, searchOptions?: SearchOptions, filterQuery?: string): Observable<RemoteData<FacetValues>> {
+  getFacetValuesFor(filterConfig: SearchFilterConfig, valuePage: number, searchOptions?: PaginatedSearchOptions, filterQuery?: string, useCachedVersionIfAvailable = true): Observable<RemoteData<FacetValues>> {
    let href;
-    const args: string[] = [`page=${valuePage - 1}`, `size=${filterConfig.pageSize}`];
+    let args: string[] = [];
    if (hasValue(filterQuery)) {
      args.push(`prefix=${filterQuery}`);
    }
    if (hasValue(searchOptions)) {
+      searchOptions = Object.assign(new PaginatedSearchOptions({}), searchOptions, {
+        pagination: Object.assign({}, searchOptions.pagination, {
+          currentPage: valuePage,
+          pageSize: filterConfig.pageSize
+        })
+      });
      href = searchOptions.toRestUrl(filterConfig._links.self.href, args);
    } else {
+      args = [`page=${valuePage - 1}`, `size=${filterConfig.pageSize}`, ...args];
      href = new URLCombiner(filterConfig._links.self.href, `?${args.join('&')}`).toString();
    }

@@ -284,7 +292,7 @@ export class SearchService implements OnDestroy {
        return FacetValueResponseParsingService;
      }
    });
-    this.requestService.send(request, true);
+    this.requestService.send(request, useCachedVersionIfAvailable);

    return this.rdb.buildFromHref(href);
  }
--- a/src/app/home-page/recent-item-list/recent-item-list.component.html
+++ b/src/app/home-page/recent-item-list/recent-item-list.component.html
@@ -6,8 +6,7 @@
                        <ds-listable-object-component-loader [object]="item" [viewMode]="viewMode" class="pb-4">
                        </ds-listable-object-component-loader>
                </div>
-                <button (click)="onLoadMore()" class="btn btn-primary search-button mt-4 float-left ng-tns-c290-40">Load
-                        more...</button>
+                <button (click)="onLoadMore()" class="btn btn-primary search-button mt-4 float-left ng-tns-c290-40"> {{'vocabulary-treeview.load-more' | translate }} ...</button>
        </div>
        <ds-error *ngIf="itemRD?.hasFailed" message="{{'error.recent-submissions' | translate}}"></ds-error>
        <ds-loading *ngIf="!itemRD || itemRD.isLoading" message="{{'loading.recent-submissions' | translate}}">
--- a/src/app/item-page/edit-item-page/edit-item-page.component.spec.ts
+++ b/src/app/item-page/edit-item-page/edit-item-page.component.spec.ts
@@ -22,7 +22,6 @@ describe('ItemPageComponent', () => {

  class AcceptNoneGuard implements CanActivate {
    canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean | UrlTree> | Promise<boolean | UrlTree> | boolean | UrlTree {
-      console.log('BLA');
      return observableOf(false);
    }
  }
--- a/src/app/item-page/edit-item-page/virtual-metadata/virtual-metadata.component.html
+++ b/src/app/item-page/edit-item-page/virtual-metadata/virtual-metadata.component.html
@@ -1,4 +1,4 @@
-<div>
+<div [ngClass]="showThumbnails ? 'hide-modal-thumbnail-column' : ''">
    <div class="modal-header">{{'virtual-metadata.delete-relationship.modal-head' | translate}}
        <button type="button" class="close" (click)="close.emit()" aria-label="Close">
            <span aria-hidden="true">×</span>
--- a/src/app/item-page/edit-item-page/virtual-metadata/virtual-metadata.component.spec.ts
+++ b/src/app/item-page/edit-item-page/virtual-metadata/virtual-metadata.component.spec.ts
@@ -7,6 +7,8 @@ import { VirtualMetadataComponent } from './virtual-metadata.component';
 import { Item } from '../../../core/shared/item.model';
 import { ObjectUpdatesService } from '../../../core/data/object-updates/object-updates.service';
 import { VarDirective } from '../../../shared/utils/var.directive';
+import { APP_CONFIG } from '../../../../config/app-config.interface';
+import { environment } from '../../../../environments/environment';

 describe('VirtualMetadataComponent', () => {

@@ -46,6 +48,7 @@ describe('VirtualMetadataComponent', () => {
      declarations: [VirtualMetadataComponent, VarDirective],
      providers: [
        { provide: ObjectUpdatesService, useValue: objectUpdatesService },
+        { provide: APP_CONFIG, useValue: environment }
      ], schemas: [
        NO_ERRORS_SCHEMA
      ]
--- a/src/app/item-page/edit-item-page/virtual-metadata/virtual-metadata.component.ts
+++ b/src/app/item-page/edit-item-page/virtual-metadata/virtual-metadata.component.ts
@@ -1,8 +1,9 @@
-import {Component, EventEmitter, Input, OnInit, Output} from '@angular/core';
+import { Component, EventEmitter, Inject, Input, OnInit, Output } from '@angular/core';
 import {Observable} from 'rxjs';
 import {Item} from '../../../core/shared/item.model';
 import {MetadataValue} from '../../../core/shared/metadata.models';
 import {ObjectUpdatesService} from '../../../core/data/object-updates/object-updates.service';
+import { APP_CONFIG, AppConfig } from '../../../../config/app-config.interface';

@Component({
  selector: 'ds-virtual-metadata',
@@ -45,6 +46,12 @@ export class VirtualMetadataComponent implements OnInit {
   */
  @Output() save = new EventEmitter();

+  /**
+   * Indicates when thumbnails are required by configuration and therefore
+   * need to be hidden in the modal layout.
+   */
+  showThumbnails: boolean;
+
  /**
   * Get an array of the left and the right item of the relationship to be deleted.
   */
@@ -56,7 +63,9 @@ export class VirtualMetadataComponent implements OnInit {

  constructor(
    protected objectUpdatesService: ObjectUpdatesService,
+    @Inject(APP_CONFIG) protected appConfig: AppConfig,
  ) {
+    this.showThumbnails = this.appConfig.browseBy.showThumbnails;
  }

  /**
--- a/src/app/register-email-form/register-email-form.component.html
+++ b/src/app/register-email-form/register-email-form.component.html
@@ -2,7 +2,7 @@
    <h2>{{MESSAGE_PREFIX + '.header'|translate}}</h2>
    <p>{{MESSAGE_PREFIX + '.info' | translate}}</p>

-    <form [class]="'ng-invalid'" [formGroup]="form" (ngSubmit)="register()">
+    <form [class]="'ng-invalid'" [formGroup]="form">

        <div class="form-group">
            <div class="row">
@@ -28,9 +28,30 @@
            </div>

        </div>
+
+    <ds-alert [type]="AlertTypeEnum.Warning" *ngIf="registrationVerification && !isRecaptchaCookieAccepted()">
+      <p class="m-0" [innerHTML]="MESSAGE_PREFIX + '.google-recaptcha.must-accept-cookies' | translate"></p>
+      <p class="m-0"><a href="javascript:void(0);" (click)="this.klaroService.showSettings()">{{ MESSAGE_PREFIX + '.google-recaptcha.open-cookie-settings' | translate }}</a></p>
+    </ds-alert>
+
+    <div class="my-3" *ngIf="isRecaptchaCookieAccepted() && (googleRecaptchaService.captchaVersion() | async) === 'v2'">
+      <ds-google-recaptcha [captchaMode]="(googleRecaptchaService.captchaMode() | async)"
+                           (executeRecaptcha)="register($event)" (checkboxChecked)="onCheckboxChecked($event)"
+                           (showNotification)="showNotification($event)"></ds-google-recaptcha>
+    </div>
+
+    <ng-container *ngIf="!((googleRecaptchaService.captchaVersion() | async) === 'v2' && (googleRecaptchaService.captchaMode() | async) === 'invisible'); else v2Invisible">
+      <button class="btn btn-primary" [disabled]="form.invalid || registrationVerification && !isRecaptchaCookieAccepted() || disableUntilChecked" (click)="register()">
+        {{ MESSAGE_PREFIX + '.submit' | translate }}
+      </button>
+    </ng-container>
+
+    <ng-template #v2Invisible>
+      <button class="btn btn-primary" [disabled]="form.invalid" (click)="executeRecaptcha()">
+        {{ MESSAGE_PREFIX + '.submit' | translate }}
+      </button>
+    </ng-template>
    </form>

-    <button class="btn btn-primary"
-            [disabled]="form.invalid"
-            (click)="register()">{{MESSAGE_PREFIX + '.submit'| translate}}</button>
+
 </div>
--- a/src/app/register-email-form/register-email-form.component.spec.ts
+++ b/src/app/register-email-form/register-email-form.component.spec.ts
@@ -1,5 +1,5 @@
-import { waitForAsync, ComponentFixture, TestBed } from '@angular/core/testing';
-import { of as observableOf } from 'rxjs';
+import { waitForAsync, ComponentFixture, TestBed, tick, fakeAsync } from '@angular/core/testing';
+import { of as observableOf, of } from 'rxjs';
 import { RestResponse } from '../core/cache/response.models';
 import { CommonModule } from '@angular/common';
 import { RouterTestingModule } from '@angular/router/testing';
@@ -14,6 +14,10 @@ import { RouterStub } from '../shared/testing/router.stub';
 import { NotificationsServiceStub } from '../shared/testing/notifications-service.stub';
 import { RegisterEmailFormComponent } from './register-email-form.component';
 import { createSuccessfulRemoteDataObject$ } from '../shared/remote-data.utils';
+import { ConfigurationDataService } from '../core/data/configuration-data.service';
+import { GoogleRecaptchaService } from '../core/google-recaptcha/google-recaptcha.service';
+import { CookieService } from '../core/services/cookie.service';
+import { CookieServiceMock } from '../shared/mocks/cookie.service.mock';

 describe('RegisterEmailComponent', () => {

@@ -24,6 +28,22 @@ describe('RegisterEmailComponent', () => {
  let epersonRegistrationService: EpersonRegistrationService;
  let notificationsService;

+  const configurationDataService = jasmine.createSpyObj('configurationDataService', {
+    findByPropertyName: jasmine.createSpy('findByPropertyName')
+  });
+
+  const captchaVersion$ = of('v3');
+  const captchaMode$ = of('invisible');
+  const confResponse$ = createSuccessfulRemoteDataObject$({ values: ['true'] });
+  const confResponseDisabled$ = createSuccessfulRemoteDataObject$({ values: ['false'] });
+
+  const googleRecaptchaService = jasmine.createSpyObj('googleRecaptchaService', {
+    getRecaptchaToken: Promise.resolve('googleRecaptchaToken'),
+    executeRecaptcha: Promise.resolve('googleRecaptchaToken'),
+    getRecaptchaTokenResponse: Promise.resolve('googleRecaptchaToken'),
+    captchaVersion: captchaVersion$,
+    captchaMode: captchaMode$,
+  });
  beforeEach(waitForAsync(() => {

    router = new RouterStub();
@@ -39,8 +59,11 @@ describe('RegisterEmailComponent', () => {
      providers: [
        {provide: Router, useValue: router},
        {provide: EpersonRegistrationService, useValue: epersonRegistrationService},
+        {provide: ConfigurationDataService, useValue: configurationDataService},
        {provide: FormBuilder, useValue: new FormBuilder()},
        {provide: NotificationsService, useValue: notificationsService},
+        {provide: CookieService, useValue: new CookieServiceMock()},
+        {provide: GoogleRecaptchaService, useValue: googleRecaptchaService},
      ],
      schemas: [CUSTOM_ELEMENTS_SCHEMA]
    }).compileComponents();
@@ -48,6 +71,9 @@ describe('RegisterEmailComponent', () => {
  beforeEach(() => {
    fixture = TestBed.createComponent(RegisterEmailFormComponent);
    comp = fixture.componentInstance;
+    googleRecaptchaService.captchaVersion$ = captchaVersion$;
+    googleRecaptchaService.captchaMode$ = captchaMode$;
+    configurationDataService.findByPropertyName.and.returnValues(confResponseDisabled$, confResponseDisabled$, confResponseDisabled$, confResponseDisabled$, confResponseDisabled$, confResponseDisabled$, confResponseDisabled$, confResponseDisabled$, confResponseDisabled$, confResponseDisabled$);

    fixture.detectChanges();
  });
@@ -90,4 +116,33 @@ describe('RegisterEmailComponent', () => {
      expect(router.navigate).not.toHaveBeenCalled();
    });
  });
+  describe('register with google recaptcha', () => {
+    beforeEach(fakeAsync(() => {
+      configurationDataService.findByPropertyName.and.returnValues(confResponse$, confResponse$, confResponse$, confResponse$, confResponse$, confResponse$, confResponse$, confResponse$, confResponse$, confResponse$);
+      googleRecaptchaService.captchaVersion$ = captchaVersion$;
+      googleRecaptchaService.captchaMode$ = captchaMode$;
+      comp.ngOnInit();
+      fixture.detectChanges();
+    }));
+
+    it('should send a registration to the service and on success display a message and return to home', fakeAsync(() => {
+      comp.form.patchValue({email: 'valid@email.org'});
+      comp.register();
+      tick();
+      expect(epersonRegistrationService.registerEmail).toHaveBeenCalledWith('valid@email.org', 'googleRecaptchaToken');
+      expect(notificationsService.success).toHaveBeenCalled();
+      expect(router.navigate).toHaveBeenCalledWith(['/home']);
+    }));
+    it('should send a registration to the service and on error display a message', fakeAsync(() => {
+      (epersonRegistrationService.registerEmail as jasmine.Spy).and.returnValue(observableOf(new RestResponse(false, 400, 'Bad Request')));
+
+      comp.form.patchValue({email: 'valid@email.org'});
+
+      comp.register();
+      tick();
+      expect(epersonRegistrationService.registerEmail).toHaveBeenCalledWith('valid@email.org', 'googleRecaptchaToken');
+      expect(notificationsService.error).toHaveBeenCalled();
+      expect(router.navigate).not.toHaveBeenCalled();
+    }));
+  });
 });
--- a/src/app/register-email-form/register-email-form.component.ts
+++ b/src/app/register-email-form/register-email-form.component.ts
@@ -1,4 +1,4 @@
-import { Component, Input, OnInit } from '@angular/core';
+import { ChangeDetectorRef, Component, Input, OnInit, Optional } from '@angular/core';
 import { EpersonRegistrationService } from '../core/data/eperson-registration.service';
 import { NotificationsService } from '../shared/notifications/notifications.service';
 import { TranslateService } from '@ngx-translate/core';
@@ -6,6 +6,16 @@ import { Router } from '@angular/router';
 import { FormBuilder, FormControl, FormGroup, Validators } from '@angular/forms';
 import { Registration } from '../core/shared/registration.model';
 import { RemoteData } from '../core/data/remote-data';
+import { ConfigurationDataService } from '../core/data/configuration-data.service';
+import { getFirstSucceededRemoteDataPayload } from '../core/shared/operators';
+import { ConfigurationProperty } from '../core/shared/configuration-property.model';
+import { isNotEmpty } from '../shared/empty.util';
+import { BehaviorSubject, combineLatest, Observable, of, switchMap } from 'rxjs';
+import { map, startWith, take } from 'rxjs/operators';
+import { CAPTCHA_NAME, GoogleRecaptchaService } from '../core/google-recaptcha/google-recaptcha.service';
+import { AlertType } from '../shared/alert/aletr-type';
+import { KlaroService } from '../shared/cookies/klaro.service';
+import { CookieService } from '../core/services/cookie.service';

@Component({
  selector: 'ds-register-email-form',
@@ -27,12 +37,40 @@ export class RegisterEmailFormComponent implements OnInit {
  @Input()
  MESSAGE_PREFIX: string;

+  public AlertTypeEnum = AlertType;
+
+  /**
+   * registration verification configuration
+   */
+  registrationVerification = false;
+
+  /**
+   * Return true if the user completed the reCaptcha verification (checkbox mode)
+   */
+  checkboxCheckedSubject$ = new BehaviorSubject<boolean>(false);
+
+  disableUntilChecked = true;
+
+  captchaVersion(): Observable<string> {
+    return this.googleRecaptchaService.captchaVersion();
+  }
+
+  captchaMode(): Observable<string> {
+    return this.googleRecaptchaService.captchaMode();
+  }
+
  constructor(
    private epersonRegistrationService: EpersonRegistrationService,
    private notificationService: NotificationsService,
    private translateService: TranslateService,
    private router: Router,
-    private formBuilder: FormBuilder
+    private formBuilder: FormBuilder,
+    private configService: ConfigurationDataService,
+    public googleRecaptchaService: GoogleRecaptchaService,
+    public cookieService: CookieService,
+    @Optional() public klaroService: KlaroService,
+    private changeDetectorRef: ChangeDetectorRef,
+    private notificationsService: NotificationsService,
  ) {

  }
@@ -45,15 +83,70 @@ export class RegisterEmailFormComponent implements OnInit {
        ],
      })
    });
+    this.configService.findByPropertyName('registration.verification.enabled').pipe(
+      getFirstSucceededRemoteDataPayload(),
+      map((res: ConfigurationProperty) => res?.values[0].toLowerCase() === 'true')
+    ).subscribe((res: boolean) => {
+      this.registrationVerification = res;
+    });

+    this.disableUntilCheckedFcn().subscribe((res) => {
+      this.disableUntilChecked = res;
+      this.changeDetectorRef.detectChanges();
+    });
+
+  }
+
+  /**
+   * execute the captcha function for v2 invisible
+   */
+  executeRecaptcha() {
+    this.googleRecaptchaService.executeRecaptcha();
  }

  /**
   * Register an email address
   */
-  register() {
+  register(tokenV2?) {
    if (!this.form.invalid) {
-      this.epersonRegistrationService.registerEmail(this.email.value).subscribe((response: RemoteData<Registration>) => {
+      if (this.registrationVerification) {
+        combineLatest([this.captchaVersion(), this.captchaMode()]).pipe(
+          switchMap(([captchaVersion, captchaMode])  => {
+            if (captchaVersion === 'v3') {
+              return this.googleRecaptchaService.getRecaptchaToken('register_email');
+            } else if (captchaVersion === 'v2' && captchaMode === 'checkbox') {
+              return of(this.googleRecaptchaService.getRecaptchaTokenResponse());
+            } else if (captchaVersion === 'v2' && captchaMode === 'invisible') {
+              return of(tokenV2);
+            } else {
+              console.error(`Invalid reCaptcha configuration: version = ${captchaVersion}, mode = ${captchaMode}`);
+              this.showNotification('error');
+            }
+          }),
+          take(1),
+        ).subscribe((token) => {
+            if (isNotEmpty(token)) {
+              this.registration(token);
+            } else {
+              console.error('reCaptcha error');
+              this.showNotification('error');
+            }
+          }
+        );
+      } else {
+        this.registration();
+      }
+    }
+  }
+
+  /**
+   * Registration of an email address
+   */
+  registration(captchaToken = null) {
+    let registerEmail$ = captchaToken ?
+      this.epersonRegistrationService.registerEmail(this.email.value, captchaToken) :
+      this.epersonRegistrationService.registerEmail(this.email.value);
+    registerEmail$.subscribe((response: RemoteData<Registration>) => {
      if (response.hasSucceeded) {
        this.notificationService.success(this.translateService.get(`${this.MESSAGE_PREFIX}.success.head`),
          this.translateService.get(`${this.MESSAGE_PREFIX}.success.content`, {email: this.email.value}));
@@ -62,13 +155,55 @@ export class RegisterEmailFormComponent implements OnInit {
        this.notificationService.error(this.translateService.get(`${this.MESSAGE_PREFIX}.error.head`),
          this.translateService.get(`${this.MESSAGE_PREFIX}.error.content`, {email: this.email.value}));
      }
+    });
  }
+
+  /**
+   * Return true if the user has accepted the required cookies for reCaptcha
+   */
+  isRecaptchaCookieAccepted(): boolean {
+    const klaroAnonymousCookie = this.cookieService.get('klaro-anonymous');
+    return isNotEmpty(klaroAnonymousCookie) ? klaroAnonymousCookie[CAPTCHA_NAME] : false;
+  }
+
+  /**
+   * Return true if the user has not completed the reCaptcha verification (checkbox mode)
+   */
+  disableUntilCheckedFcn(): Observable<boolean> {
+    const checked$ = this.checkboxCheckedSubject$.asObservable();
+    return combineLatest([this.captchaVersion(), this.captchaMode(), checked$]).pipe(
+      // disable if checkbox is not checked or if reCaptcha is not in v2 checkbox mode
+      switchMap(([captchaVersion, captchaMode, checked])  => captchaVersion === 'v2' && captchaMode === 'checkbox' ? of(!checked) : of(false)),
+      startWith(true),
    );
  }
-  }

  get email() {
    return this.form.get('email');
  }

+  onCheckboxChecked(checked: boolean) {
+    this.checkboxCheckedSubject$.next(checked);
+  }
+
+  /**
+   * Show a notification to the user
+   * @param key
+   */
+  showNotification(key) {
+    const notificationTitle = this.translateService.get(this.MESSAGE_PREFIX + '.google-recaptcha.notification.title');
+    const notificationErrorMsg = this.translateService.get(this.MESSAGE_PREFIX + '.google-recaptcha.notification.message.error');
+    const notificationExpiredMsg = this.translateService.get(this.MESSAGE_PREFIX + '.google-recaptcha.notification.message.expired');
+    switch (key) {
+      case 'expired':
+        this.notificationsService.warning(notificationTitle, notificationExpiredMsg);
+        break;
+      case 'error':
+        this.notificationsService.error(notificationTitle, notificationErrorMsg);
+        break;
+      default:
+        console.warn(`Unimplemented notification '${key}' from reCaptcha service`);
+    }
+  }
+
 }
--- a/src/app/register-email-form/register-email-form.module.ts
+++ b/src/app/register-email-form/register-email-form.module.ts
@@ -6,7 +6,7 @@ import { RegisterEmailFormComponent } from './register-email-form.component';
@NgModule({
  imports: [
    CommonModule,
-    SharedModule,
+    SharedModule
  ],
  declarations: [
    RegisterEmailFormComponent,
--- a/src/app/root/root.component.spec.ts
+++ b/src/app/root/root.component.spec.ts
@@ -17,7 +17,7 @@ import { ActivatedRoute, Router } from '@angular/router';
 import { RouterMock } from '../shared/mocks/router.mock';
 import { MockActivatedRoute } from '../shared/mocks/active-router.mock';
 import { MenuService } from '../shared/menu/menu.service';
-import { CSSVariableService } from '../shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from '../shared/sass-helper/css-variable.service';
 import { CSSVariableServiceStub } from '../shared/testing/css-variable-service.stub';
 import { HostWindowService } from '../shared/host-window.service';
 import { HostWindowServiceStub } from '../shared/testing/host-window-service.stub';
--- a/src/app/root/root.component.ts
+++ b/src/app/root/root.component.ts
@@ -10,7 +10,7 @@ import { MetadataService } from '../core/metadata/metadata.service';
 import { HostWindowState } from '../shared/search/host-window.reducer';
 import { NativeWindowRef, NativeWindowService } from '../core/services/window.service';
 import { AuthService } from '../core/auth/auth.service';
-import { CSSVariableService } from '../shared/sass-helper/sass-helper.service';
+import { CSSVariableService } from '../shared/sass-helper/css-variable.service';
 import { MenuService } from '../shared/menu/menu.service';
 import { HostWindowService } from '../shared/host-window.service';
 import { ThemeConfig } from '../../config/theme.model';
@@ -63,8 +63,8 @@ export class RootComponent implements OnInit {
  ngOnInit() {
    this.sidebarVisible = this.menuService.isMenuVisible(MenuID.ADMIN);

-    this.collapsedSidebarWidth = this.cssService.getVariable('collapsedSidebarWidth');
-    this.totalSidebarWidth = this.cssService.getVariable('totalSidebarWidth');
+    this.collapsedSidebarWidth = this.cssService.getVariable('--ds-collapsed-sidebar-width');
+    this.totalSidebarWidth = this.cssService.getVariable('--ds-total-sidebar-width');

    const sidebarCollapsed = this.menuService.isMenuCollapsed(MenuID.ADMIN);
    this.slideSidebarOver = combineLatestObservable([sidebarCollapsed, this.windowService.isXsOrSm()])
--- a/src/app/shared/cookies/browser-klaro.service.spec.ts
+++ b/src/app/shared/cookies/browser-klaro.service.spec.ts
@@ -21,6 +21,8 @@ describe('BrowserKlaroService', () => {
  const trackingIdProp = 'google.analytics.key';
  const trackingIdTestValue = 'mock-tracking-id';
  const googleAnalytics = 'google-analytics';
+  const recaptchaProp = 'registration.verification.enabled';
+  const recaptchaValue = 'true';
  let translateService;
  let ePersonService;
  let authService;
@@ -31,8 +33,8 @@ describe('BrowserKlaroService', () => {
  let configurationDataService: ConfigurationDataService;
  const createConfigSuccessSpy = (...values: string[]) => jasmine.createSpyObj('configurationDataService', {
    findByPropertyName: createSuccessfulRemoteDataObject$({
-      ...new ConfigurationProperty(),
-      name: trackingIdProp,
+      ... new ConfigurationProperty(),
+      name: recaptchaProp,
      values: values,
    }),
  });
@@ -57,7 +59,7 @@ describe('BrowserKlaroService', () => {
      isAuthenticated: observableOf(true),
      getAuthenticatedUserFromStore: observableOf(user)
    });
-    configurationDataService = createConfigSuccessSpy(trackingIdTestValue);
+    configurationDataService = createConfigSuccessSpy(recaptchaValue);
    findByPropertyName = configurationDataService.findByPropertyName;
    cookieService = jasmine.createSpyObj('cookieService', {
      get: '{%22token_item%22:true%2C%22impersonation%22:true%2C%22redirect%22:true%2C%22language%22:true%2C%22klaro%22:true%2C%22has_agreed_end_user%22:true%2C%22google-analytics%22:true}',
@@ -298,15 +300,18 @@ describe('BrowserKlaroService', () => {

  describe('initialize google analytics configuration', () => {
    let GOOGLE_ANALYTICS_KEY;
+    let REGISTRATION_VERIFICATION_ENABLED_KEY;
    beforeEach(() => {
      GOOGLE_ANALYTICS_KEY = clone((service as any).GOOGLE_ANALYTICS_KEY);
-      configurationDataService.findByPropertyName = findByPropertyName;
+      REGISTRATION_VERIFICATION_ENABLED_KEY = clone((service as any).REGISTRATION_VERIFICATION_ENABLED_KEY);
      spyOn((service as any), 'getUser$').and.returnValue(observableOf(user));
      translateService.get.and.returnValue(observableOf('loading...'));
      spyOn(service, 'addAppMessages');
      spyOn((service as any), 'initializeUser');
      spyOn(service, 'translateConfiguration');
+      configurationDataService.findByPropertyName = findByPropertyName;
    });
+
    it('should not filter googleAnalytics when servicesToHide are empty', () => {
      const filteredConfig = (service as any).filterConfigServices([]);
      expect(filteredConfig).toContain(jasmine.objectContaining({ name: googleAnalytics }));
@@ -316,30 +321,74 @@ describe('BrowserKlaroService', () => {
      expect(filteredConfig).not.toContain(jasmine.objectContaining({ name: googleAnalytics }));
    });
    it('should have been initialized with googleAnalytics', () => {
+      configurationDataService.findByPropertyName = jasmine.createSpy('configurationDataService').and.returnValue(
+        createSuccessfulRemoteDataObject$({
+          ...new ConfigurationProperty(),
+          name: trackingIdProp,
+          values: [googleAnalytics],
+        })
+      );
      service.initialize();
      expect(service.klaroConfig.services).toContain(jasmine.objectContaining({ name: googleAnalytics }));
    });
    it('should filter googleAnalytics when empty configuration is retrieved', () => {
-      configurationDataService.findByPropertyName = jasmine.createSpy().withArgs(GOOGLE_ANALYTICS_KEY).and.returnValue(
+      configurationDataService.findByPropertyName =
+        jasmine.createSpy()
+          .withArgs(GOOGLE_ANALYTICS_KEY)
+          .and
+          .returnValue(
            createSuccessfulRemoteDataObject$({
-          ...new ConfigurationProperty(),
+              ... new ConfigurationProperty(),
              name: googleAnalytics,
              values: [],
-        }));
+              }
+            )
+          )
+          .withArgs(REGISTRATION_VERIFICATION_ENABLED_KEY)
+          .and
+          .returnValue(
+            createSuccessfulRemoteDataObject$({
+              ... new ConfigurationProperty(),
+              name: trackingIdTestValue,
+              values: ['false'],
+            })
+          );

      service.initialize();
      expect(service.klaroConfig.services).not.toContain(jasmine.objectContaining({ name: googleAnalytics }));
    });
    it('should filter googleAnalytics when an error occurs', () => {
-      configurationDataService.findByPropertyName = jasmine.createSpy().withArgs(GOOGLE_ANALYTICS_KEY).and.returnValue(
-        createFailedRemoteDataObject$('Erro while loading GA')
+      configurationDataService.findByPropertyName =
+        jasmine.createSpy()
+          .withArgs(GOOGLE_ANALYTICS_KEY).and.returnValue(
+            createFailedRemoteDataObject$('Error while loading GA')
+          )
+          .withArgs(REGISTRATION_VERIFICATION_ENABLED_KEY)
+          .and
+          .returnValue(
+            createSuccessfulRemoteDataObject$({
+              ... new ConfigurationProperty(),
+              name: trackingIdTestValue,
+              values: ['false'],
+            })
          );
      service.initialize();
      expect(service.klaroConfig.services).not.toContain(jasmine.objectContaining({ name: googleAnalytics }));
    });
    it('should filter googleAnalytics when an invalid payload is retrieved', () => {
-      configurationDataService.findByPropertyName = jasmine.createSpy().withArgs(GOOGLE_ANALYTICS_KEY).and.returnValue(
+      configurationDataService.findByPropertyName =
+        jasmine.createSpy()
+          .withArgs(GOOGLE_ANALYTICS_KEY).and.returnValue(
            createSuccessfulRemoteDataObject$(null)
+          )
+          .withArgs(REGISTRATION_VERIFICATION_ENABLED_KEY)
+          .and
+          .returnValue(
+            createSuccessfulRemoteDataObject$({
+              ... new ConfigurationProperty(),
+              name: trackingIdTestValue,
+              values: ['false'],
+            })
          );
      service.initialize();
      expect(service.klaroConfig.services).not.toContain(jasmine.objectContaining({ name: googleAnalytics }));
--- a/src/app/shared/cookies/browser-klaro.service.ts
+++ b/src/app/shared/cookies/browser-klaro.service.ts
@@ -15,6 +15,7 @@ import { ANONYMOUS_STORAGE_NAME_KLARO, klaroConfiguration } from './klaro-config
 import { Operation } from 'fast-json-patch';
 import { getFirstCompletedRemoteData } from '../../core/shared/operators';
 import { ConfigurationDataService } from '../../core/data/configuration-data.service';
+import { CAPTCHA_NAME } from '../../core/google-recaptcha/google-recaptcha.service';

 /**
 * Metadata field to store a user's cookie consent preferences in
@@ -49,6 +50,8 @@ export class BrowserKlaroService extends KlaroService {

  private readonly GOOGLE_ANALYTICS_KEY = 'google.analytics.key';

+  private readonly REGISTRATION_VERIFICATION_ENABLED_KEY = 'registration.verification.enabled';
+
  private readonly GOOGLE_ANALYTICS_SERVICE_NAME = 'google-analytics';

  /**
@@ -78,15 +81,30 @@ export class BrowserKlaroService extends KlaroService {
      this.klaroConfig.translations.en.consentNotice.description = 'cookies.consent.content-notice.description.no-privacy';
    }

-    const servicesToHide$: Observable<string[]> = this.configService.findByPropertyName(this.GOOGLE_ANALYTICS_KEY).pipe(
+    const hideGoogleAnalytics$ = this.configService.findByPropertyName(this.GOOGLE_ANALYTICS_KEY).pipe(
      getFirstCompletedRemoteData(),
-      map(remoteData => {
-        if (!remoteData.hasSucceeded || !remoteData.payload || isEmpty(remoteData.payload.values)) {
-          return [this.GOOGLE_ANALYTICS_SERVICE_NAME];
-        } else {
-          return [];
+      map(remoteData => !remoteData.hasSucceeded || !remoteData.payload || isEmpty(remoteData.payload.values)),
+    );
+
+    const hideRegistrationVerification$ = this.configService.findByPropertyName(this.REGISTRATION_VERIFICATION_ENABLED_KEY).pipe(
+      getFirstCompletedRemoteData(),
+      map((remoteData) =>
+        !remoteData.hasSucceeded || !remoteData.payload || isEmpty(remoteData.payload.values) || remoteData.payload.values[0].toLowerCase() !== 'true'
+      ),
+    );
+
+    const servicesToHide$: Observable<string[]> = observableCombineLatest([hideGoogleAnalytics$, hideRegistrationVerification$]).pipe(
+      map(([hideGoogleAnalytics, hideRegistrationVerification]) => {
+        let servicesToHideArray: string[] = [];
+        if (hideGoogleAnalytics) {
+          servicesToHideArray.push(this.GOOGLE_ANALYTICS_SERVICE_NAME);
        }
-      }),
+        if (hideRegistrationVerification) {
+          servicesToHideArray.push(CAPTCHA_NAME);
+        }
+        console.log(servicesToHideArray);
+        return servicesToHideArray;
+      })
    );

    this.translateService.setDefaultLang(environment.defaultLanguage);
@@ -308,4 +326,5 @@ export class BrowserKlaroService extends KlaroService {
  private filterConfigServices(servicesToHide: string[]): Pick<typeof klaroConfiguration, 'services'>[] {
    return this.klaroConfig.services.filter(service => !servicesToHide.some(name => name === service.name));
  }
+
 }
--- a/src/app/shared/cookies/klaro-configuration.ts
+++ b/src/app/shared/cookies/klaro-configuration.ts
@@ -1,6 +1,7 @@
 import { TOKENITEM } from '../../core/auth/models/auth-token-info.model';
 import { IMPERSONATING_COOKIE, REDIRECT_COOKIE } from '../../core/auth/auth.service';
 import { LANG_COOKIE } from '../../core/locale/locale.service';
+import { CAPTCHA_COOKIE, CAPTCHA_NAME } from '../../core/google-recaptcha/google-recaptcha.service';

 /**
 * Cookie for has_agreed_end_user
@@ -157,5 +158,17 @@ export const klaroConfiguration: any = {
      */
      onlyOnce: true,
    },
+    {
+      name: CAPTCHA_NAME,
+      purposes: ['registration-password-recovery'],
+      required: false,
+      cookies: [
+        [/^klaro-.+$/],
+        CAPTCHA_COOKIE
+      ],
+      onAccept: `window.refreshCaptchaScript?.call()`,
+      onDecline: `window.refreshCaptchaScript?.call()`,
+      onlyOnce: true,
+    }
  ],
 };
--- a/src/app/shared/form/builder/ds-dynamic-form-ui/models/ds-dynamic-concat.model.ts
+++ b/src/app/shared/form/builder/ds-dynamic-form-ui/models/ds-dynamic-concat.model.ts
@@ -1,4 +1,10 @@
-import { DynamicFormControlLayout, DynamicFormGroupModel, DynamicFormGroupModelConfig, serializable } from '@ng-dynamic-forms/core';
+import {
+  DynamicFormControlLayout,
+  DynamicFormControlRelation,
+  DynamicFormGroupModel,
+  DynamicFormGroupModelConfig,
+  serializable
+} from '@ng-dynamic-forms/core';

 import { Subject } from 'rxjs';

@@ -16,6 +22,7 @@ export interface DynamicConcatModelConfig extends DynamicFormGroupModelConfig {
  separator: string;
  value?: any;
  hint?: string;
+  typeBindRelations?: DynamicFormControlRelation[];
  relationship?: RelationshipOptions;
  repeatable: boolean;
  required: boolean;
@@ -29,6 +36,8 @@ export class DynamicConcatModel extends DynamicFormGroupModel {

  @serializable() separator: string;
  @serializable() hasLanguages = false;
+  @serializable() typeBindRelations: DynamicFormControlRelation[];
+  @serializable() typeBindHidden = false;
  @serializable() relationship?: RelationshipOptions;
  @serializable() repeatable?: boolean;
  @serializable() required?: boolean;
@@ -55,6 +64,7 @@ export class DynamicConcatModel extends DynamicFormGroupModel {
    this.metadataValue = config.metadataValue;
    this.valueUpdates = new Subject<string>();
    this.valueUpdates.subscribe((value: string) => this.value = value);
+    this.typeBindRelations = config.typeBindRelations ? config.typeBindRelations : [];
  }

  get value() {
--- a/src/app/shared/google-recaptcha/google-recaptcha.component.html
+++ b/src/app/shared/google-recaptcha/google-recaptcha.component.html
@@ -0,0 +1,6 @@
+<div class="g-recaptcha"
+     [attr.data-callback]="'dataCallback'"
+     [attr.data-expired-callback]="'expiredCallback'"
+     [attr.data-error-callback]="'errorCallback'"
+     [attr.data-sitekey]="(recaptchaKey$ | async)?.values[0]"
+     [attr.data-size]="captchaMode === 'invisible' ? 'invisible' : null"></div>
--- a/src/app/shared/google-recaptcha/google-recaptcha.component.scss
+++ b/src/app/shared/google-recaptcha/google-recaptcha.component.scss
--- a/src/app/shared/google-recaptcha/google-recaptcha.component.spec.ts
+++ b/src/app/shared/google-recaptcha/google-recaptcha.component.spec.ts
@@ -0,0 +1,50 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+import { By } from '@angular/platform-browser';
+import { NativeWindowService } from '../../core/services/window.service';
+
+import { ConfigurationDataService } from '../../core/data/configuration-data.service';
+import { NativeWindowMockFactory } from '../mocks/mock-native-window-ref';
+import { createSuccessfulRemoteDataObject$ } from '../remote-data.utils';
+import { GoogleRecaptchaComponent } from './google-recaptcha.component';
+
+describe('GoogleRecaptchaComponent', () => {
+
+  let component: GoogleRecaptchaComponent;
+
+  let fixture: ComponentFixture<GoogleRecaptchaComponent>;
+
+
+  const configurationDataService = jasmine.createSpyObj('configurationDataService', {
+    findByPropertyName: jasmine.createSpy('findByPropertyName')
+  });
+
+  const confResponse$ = createSuccessfulRemoteDataObject$({ values: ['valid-google-recaptcha-key'] });
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ GoogleRecaptchaComponent ],
+      providers: [
+      { provide: ConfigurationDataService, useValue: configurationDataService },
+      { provide: NativeWindowService, useFactory: NativeWindowMockFactory },
+    ]
+    })
+    .compileComponents();
+  });
+
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(GoogleRecaptchaComponent);
+    component = fixture.componentInstance;
+    configurationDataService.findByPropertyName.and.returnValues(confResponse$);
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+
+  it('should rendered google recaptcha.',() => {
+    const container = fixture.debugElement.query(By.css('.g-recaptcha'));
+    expect(container).toBeTruthy();
+  });
+});
--- a/src/app/shared/google-recaptcha/google-recaptcha.component.ts
+++ b/src/app/shared/google-recaptcha/google-recaptcha.component.ts
@@ -0,0 +1,70 @@
+import { Component, EventEmitter, Inject, Input, OnInit, Output } from '@angular/core';
+
+import { ConfigurationDataService } from '../../core/data/configuration-data.service';
+import { getFirstSucceededRemoteDataPayload } from '../../core/shared/operators';
+import { Observable } from 'rxjs';
+import { NativeWindowRef, NativeWindowService } from 'src/app/core/services/window.service';
+import { isNotEmpty } from '../empty.util';
+
+@Component({
+  selector: 'ds-google-recaptcha',
+  templateUrl: './google-recaptcha.component.html',
+  styleUrls: ['./google-recaptcha.component.scss'],
+})
+export class GoogleRecaptchaComponent implements OnInit {
+
+  @Input() captchaMode: string;
+
+  /**
+   * An EventEmitter that's fired whenever the form is being submitted
+   */
+  @Output() executeRecaptcha: EventEmitter<any> = new EventEmitter();
+
+  @Output() checkboxChecked: EventEmitter<boolean> = new EventEmitter();
+
+  @Output() showNotification: EventEmitter<any> = new EventEmitter();
+
+  recaptchaKey$: Observable<any>;
+
+  constructor(
+    @Inject(NativeWindowService) private _window: NativeWindowRef,
+    private configService: ConfigurationDataService,
+  ) {
+  }
+
+  /**
+   * Retrieve the google recaptcha site key
+   */
+  ngOnInit() {
+    this.recaptchaKey$ = this.configService.findByPropertyName('google.recaptcha.key.site').pipe(
+      getFirstSucceededRemoteDataPayload(),
+    );
+    this._window.nativeWindow.dataCallback = this.dataCallbackFcn;
+    this._window.nativeWindow.expiredCallback = this.expiredCallbackFcn;
+    this._window.nativeWindow.errorCallback = this.errorCallbackFcn;
+  }
+
+  dataCallbackFcn = ($event) => {
+    switch (this.captchaMode) {
+      case 'invisible':
+        this.executeRecaptcha.emit($event);
+        break;
+      case 'checkbox':
+        this.checkboxChecked.emit(isNotEmpty($event));
+        break;
+      default:
+        console.error(`Invalid reCaptcha mode '${this.captchaMode}`);
+        this.showNotification.emit('error');
+    }
+  };
+
+  expiredCallbackFcn = () => {
+    this.checkboxChecked.emit(false);
+    this.showNotification.emit('expired');
+  };
+
+  errorCallbackFcn = () => {
+    this.showNotification.emit('error');
+  };
+
+}
--- a/src/app/shared/host-window.service.ts
+++ b/src/app/shared/host-window.service.ts
@@ -7,7 +7,7 @@ import { createSelector, select, Store } from '@ngrx/store';

 import { hasValue } from './empty.util';
 import { AppState } from '../app.reducer';
-import { CSSVariableService } from './sass-helper/sass-helper.service';
+import { CSSVariableService } from './sass-helper/css-variable.service';

 export enum WidthCategory {
  XS,
@@ -31,10 +31,10 @@ export class HostWindowService {
    /* See _exposed_variables.scss */
    variableService.getAllVariables()
      .subscribe((variables) => {
-      this.breakPoints.XL_MIN = parseInt(variables.xlMin, 10);
-      this.breakPoints.LG_MIN = parseInt(variables.lgMin, 10);
-      this.breakPoints.MD_MIN = parseInt(variables.mdMin, 10);
-      this.breakPoints.SM_MIN = parseInt(variables.smMin, 10);
+      this.breakPoints.XL_MIN = parseInt(variables['--bs-xl-min'], 10);
+      this.breakPoints.LG_MIN = parseInt(variables['--bs-lg-min'], 10);
+      this.breakPoints.MD_MIN = parseInt(variables['--bs-md-min'], 10);
+      this.breakPoints.SM_MIN = parseInt(variables['--bs-sm-min'], 10);
    });
  }

--- a/src/app/shared/key-value-pair.model.ts
+++ b/src/app/shared/key-value-pair.model.ts
@@ -0,0 +1,4 @@
+export interface KeyValuePair<K, V> {
+  key: K;
+  value: V;
+}
--- a/src/app/shared/mydspace-actions/claimed-task/abstract/claimed-task-actions-abstract.component.ts
+++ b/src/app/shared/mydspace-actions/claimed-task/abstract/claimed-task-actions-abstract.component.ts
@@ -10,11 +10,11 @@ import { RequestService } from '../../../../core/data/request.service';
 import { Observable } from 'rxjs';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
-import { switchMap, take } from 'rxjs/operators';
+import { take } from 'rxjs/operators';
 import { CLAIMED_TASK } from '../../../../core/tasks/models/claimed-task-object.resource-type';
-import { getFirstSucceededRemoteDataPayload } from '../../../../core/shared/operators';
 import { Item } from '../../../../core/shared/item.model';
 import { MyDSpaceReloadableActionsComponent } from '../../mydspace-reloadable-actions';
+import { isEmpty } from '../../../empty.util';

 /**
 * Abstract component for rendering a claimed task's action
@@ -36,6 +36,11 @@ export abstract class ClaimedTaskActionsAbstractComponent extends MyDSpaceReload

  object: ClaimedTask;

+  /**
+   * The item object that belonging to the ClaimedTask object
+   */
+  item: Item;
+
  /**
   * Anchor used to reload the pool task.
   */
@@ -43,6 +48,11 @@ export abstract class ClaimedTaskActionsAbstractComponent extends MyDSpaceReload

  subs = [];

+  /**
+   * The workflowitem object that belonging to the ClaimedTask object
+   */
+  workflowitem: WorkflowItem;
+
  protected constructor(protected injector: Injector,
                        protected router: Router,
                        protected notificationsService: NotificationsService,
@@ -85,16 +95,10 @@ export abstract class ClaimedTaskActionsAbstractComponent extends MyDSpaceReload
   * Retrieve the itemUuid.
   */
  initReloadAnchor() {
-    if (!(this.object as any).workflowitem) {
+    if (isEmpty(this.item)) {
      return;
    }
-    this.subs.push(this.object.workflowitem.pipe(
-      getFirstSucceededRemoteDataPayload(),
-      switchMap((workflowItem: WorkflowItem) => workflowItem.item.pipe(getFirstSucceededRemoteDataPayload())
-      ))
-      .subscribe((item: Item) => {
-        this.itemUuid = item.uuid;
-      }));
+    this.itemUuid = this.item.uuid;
  }

  ngOnDestroy() {
--- a/src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.html
+++ b/src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.html
@@ -1,15 +1,22 @@
 <ng-container *ngVar="(actionRD$ | async)?.payload as workflowAction">
  <div class="mt-1 mb-3 space-children-mr">
-    <ds-claimed-task-actions-loader *ngFor="let option of workflowAction?.options" [option]="option" [object]="object"
+    <ds-claimed-task-actions-loader *ngFor="let option of workflowAction?.options"
+                                    [item]="item"
+                                    [option]="option"
+                                    [object]="object"
+                                    [workflowitem]="workflowitem"
                                    (processCompleted)="this.processCompleted.emit($event)">
    </ds-claimed-task-actions-loader>

    <button class="btn btn-primary workflow-view" ngbTooltip="{{'submission.workflow.generic.view-help' | translate}}"
-      [routerLink]="[getWorkflowItemViewRoute((workflowitem$ | async))]">
+      [routerLink]="[getWorkflowItemViewRoute(workflowitem)]">
      <i class="fa fa-info-circle"></i> {{"submission.workflow.generic.view" | translate}}
    </button>

-    <ds-claimed-task-actions-loader [option]="returnToPoolOption" [object]="object"
+    <ds-claimed-task-actions-loader [item]="item"
+                                    [option]="returnToPoolOption"
+                                    [object]="object"
+                                    [workflowitem]="workflowitem"
                                    (processCompleted)="this.processCompleted.emit($event)">
    </ds-claimed-task-actions-loader>
  </div>
--- a/src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.spec.ts
+++ b/src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.spec.ts
@@ -3,7 +3,6 @@ import { ComponentFixture, TestBed, waitForAsync } from '@angular/core/testing';
 import { Router } from '@angular/router';

 import { of as observableOf } from 'rxjs';
-import { cold } from 'jasmine-marbles';
 import { TranslateLoader, TranslateModule } from '@ngx-translate/core';

 import { TranslateLoaderMock } from '../../mocks/translate-loader.mock';
@@ -123,7 +122,9 @@ describe('ClaimedTaskActionsComponent', () => {
  beforeEach(() => {
    fixture = TestBed.createComponent(ClaimedTaskActionsComponent);
    component = fixture.componentInstance;
+    component.item = item;
    component.object = mockObject;
+    component.workflowitem = workflowitem;
    notificationsServiceStub = TestBed.inject(NotificationsService as any);
    router = TestBed.inject(Router as any);
    fixture.detectChanges();
@@ -133,11 +134,11 @@ describe('ClaimedTaskActionsComponent', () => {
    component.object = null;
    component.initObjects(mockObject);

+    expect(component.item).toEqual(item);
+
    expect(component.object).toEqual(mockObject);

-    expect(component.workflowitem$).toBeObservable(cold('(b|)', {
-      b: rdWorkflowitem.payload
-    }));
+    expect(component.workflowitem).toEqual(workflowitem);
  });

  it('should reload page on process completed', waitForAsync(() => {
--- a/src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.ts
+++ b/src/app/shared/mydspace-actions/claimed-task/claimed-task-actions.component.ts
@@ -2,12 +2,10 @@ import { Component, Injector, Input, OnInit } from '@angular/core';
 import { Router } from '@angular/router';

 import { Observable } from 'rxjs';
-import { filter, map, take } from 'rxjs/operators';
 import { TranslateService } from '@ngx-translate/core';

 import { ClaimedTaskDataService } from '../../../core/tasks/claimed-task-data.service';
 import { ClaimedTask } from '../../../core/tasks/models/claimed-task-object.model';
-import { isNotUndefined } from '../../empty.util';
 import { WorkflowItem } from '../../../core/submission/models/workflowitem.model';
 import { RemoteData } from '../../../core/data/remote-data';
 import { MyDSpaceActionsComponent } from '../mydspace-actions';
@@ -18,6 +16,7 @@ import { WorkflowAction } from '../../../core/tasks/models/workflow-action-objec
 import { WorkflowActionDataService } from '../../../core/data/workflow-action-data.service';
 import { WORKFLOW_TASK_OPTION_RETURN_TO_POOL } from './return-to-pool/claimed-task-actions-return-to-pool.component';
 import { getWorkflowItemViewRoute } from '../../../workflowitems-edit-page/workflowitems-edit-page-routing-paths';
+import { Item } from '../../../core/shared/item.model';

 /**
 * This component represents actions related to ClaimedTask object.
@@ -34,10 +33,15 @@ export class ClaimedTaskActionsComponent extends MyDSpaceActionsComponent<Claime
   */
  @Input() object: ClaimedTask;

+  /**
+   * The item object that belonging to the ClaimedTask object
+   */
+  @Input() item: Item;
+
  /**
   * The workflowitem object that belonging to the ClaimedTask object
   */
-  public workflowitem$: Observable<WorkflowItem>;
+  @Input() workflowitem: WorkflowItem;

  /**
   * The workflow action available for this task
@@ -87,11 +91,6 @@ export class ClaimedTaskActionsComponent extends MyDSpaceActionsComponent<Claime
   */
  initObjects(object: ClaimedTask) {
    this.object = object;
-
-    this.workflowitem$ = (this.object.workflowitem as Observable<RemoteData<WorkflowItem>>).pipe(
-      filter((rd: RemoteData<WorkflowItem>) => ((!rd.isRequestPending) && isNotUndefined(rd.payload))),
-      map((rd: RemoteData<WorkflowItem>) => rd.payload),
-      take(1));
  }

  /**
--- a/src/app/shared/mydspace-actions/claimed-task/switcher/claimed-task-actions-loader.component.spec.ts
+++ b/src/app/shared/mydspace-actions/claimed-task/switcher/claimed-task-actions-loader.component.spec.ts
@@ -1,5 +1,5 @@
 import { ClaimedTaskActionsLoaderComponent } from './claimed-task-actions-loader.component';
-import { waitForAsync, ComponentFixture, TestBed } from '@angular/core/testing';
+import { ComponentFixture, TestBed, waitForAsync } from '@angular/core/testing';
 import { ChangeDetectionStrategy, Injector, NO_ERRORS_SCHEMA } from '@angular/core';
 import { ClaimedTaskActionsDirective } from './claimed-task-actions.directive';
 import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.model';
@@ -15,6 +15,8 @@ import { RequestService } from '../../../../core/data/request.service';
 import { PoolTaskDataService } from '../../../../core/tasks/pool-task-data.service';
 import { getMockSearchService } from '../../../mocks/search-service.mock';
 import { getMockRequestService } from '../../../mocks/request.service.mock';
+import { Item } from '../../../../core/shared/item.model';
+import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';

 const searchService = getMockSearchService();

@@ -27,6 +29,37 @@ describe('ClaimedTaskActionsLoaderComponent', () => {
  const option = 'test_option';
  const object = Object.assign(new ClaimedTask(), { id: 'claimed-task-1' });

+  const item = Object.assign(new Item(), {
+    metadata: {
+      'dc.title': [
+        {
+          language: 'en_US',
+          value: 'This is just another title'
+        }
+      ],
+      'dc.type': [
+        {
+          language: null,
+          value: 'Article'
+        }
+      ],
+      'dc.contributor.author': [
+        {
+          language: 'en_US',
+          value: 'Smith, Donald'
+        }
+      ],
+      'dc.date.issued': [
+        {
+          language: null,
+          value: '2015-06-26'
+        }
+      ]
+    }
+  });
+
+  const workflowitem = Object.assign(new WorkflowItem(), { id: '333' });
+
  beforeEach(waitForAsync(() => {
    TestBed.configureTestingModule({
      imports: [TranslateModule.forRoot()],
@@ -52,8 +85,10 @@ describe('ClaimedTaskActionsLoaderComponent', () => {
  beforeEach(waitForAsync(() => {
    fixture = TestBed.createComponent(ClaimedTaskActionsLoaderComponent);
    comp = fixture.componentInstance;
+    comp.item = item;
    comp.object = object;
    comp.option = option;
+    comp.workflowitem = workflowitem;
    spyOn(comp, 'getComponentByWorkflowTaskOption').and.returnValue(ClaimedTaskActionsEditMetadataComponent);

    fixture.detectChanges();
--- a/src/app/shared/mydspace-actions/claimed-task/switcher/claimed-task-actions-loader.component.ts
+++ b/src/app/shared/mydspace-actions/claimed-task/switcher/claimed-task-actions-loader.component.ts
@@ -15,6 +15,8 @@ import { ClaimedTaskActionsAbstractComponent } from '../abstract/claimed-task-ac
 import { hasValue } from '../../../empty.util';
 import { Subscription } from 'rxjs';
 import { MyDSpaceActionsResult } from '../../mydspace-actions';
+import { Item } from '../../../../core/shared/item.model';
+import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';

@Component({
  selector: 'ds-claimed-task-actions-loader',
@@ -25,6 +27,11 @@ import { MyDSpaceActionsResult } from '../../mydspace-actions';
 * Passes on the ClaimedTask to the component and subscribes to the processCompleted output
 */
 export class ClaimedTaskActionsLoaderComponent implements OnInit, OnDestroy {
+  /**
+   * The item object that belonging to the ClaimedTask object
+   */
+  @Input() item: Item;
+
  /**
   * The ClaimedTask object
   */
@@ -36,6 +43,11 @@ export class ClaimedTaskActionsLoaderComponent implements OnInit, OnDestroy {
   */
  @Input() option: string;

+  /**
+   * The workflowitem object that belonging to the ClaimedTask object
+   */
+  @Input() workflowitem: WorkflowItem;
+
  /**
   * Emits the success or failure of a processed action
   */
@@ -69,7 +81,9 @@ export class ClaimedTaskActionsLoaderComponent implements OnInit, OnDestroy {

      const componentRef = viewContainerRef.createComponent(componentFactory);
      const componentInstance = (componentRef.instance as ClaimedTaskActionsAbstractComponent);
+      componentInstance.item = this.item;
      componentInstance.object = this.object;
+      componentInstance.workflowitem = this.workflowitem;
      if (hasValue(componentInstance.processCompleted)) {
        this.subs.push(componentInstance.processCompleted.subscribe((result) => this.processCompleted.emit(result)));
      }
--- a/src/app/shared/mydspace-actions/mydspace-reloadable-actions.spec.ts
+++ b/src/app/shared/mydspace-actions/mydspace-reloadable-actions.spec.ts
@@ -12,10 +12,7 @@ import { RouterStub } from '../testing/router.stub';
 import { getMockSearchService } from '../mocks/search-service.mock';
 import { getMockRequestService } from '../mocks/request.service.mock';
 import { Item } from '../../core/shared/item.model';
-import {
-  createFailedRemoteDataObject,
-  createSuccessfulRemoteDataObject
-} from '../remote-data.utils';
+import { createFailedRemoteDataObject, createSuccessfulRemoteDataObject } from '../remote-data.utils';
 import { WorkflowItem } from '../../core/submission/models/workflowitem.model';
 import { TranslateLoaderMock } from '../mocks/translate-loader.mock';
 import { NotificationsService } from '../notifications/notifications.service';
@@ -103,7 +100,9 @@ describe('MyDSpaceReloadableActionsComponent', () => {
  beforeEach(() => {
    fixture = TestBed.createComponent(PoolTaskActionsComponent);
    component = fixture.componentInstance;
+    component.item = item;
    component.object = mockObject;
+    component.workflowitem = workflowitem;
    notificationsServiceStub = TestBed.get(NotificationsService);
    router = TestBed.get(Router);
    fixture.detectChanges();
--- a/src/app/shared/mydspace-actions/pool-task/pool-task-actions.component.html
+++ b/src/app/shared/mydspace-actions/pool-task/pool-task-actions.component.html
@@ -8,6 +8,6 @@
 </button>
 <button class="btn btn-primary workflow-view ml-1 mt-1 mb-3" data-test="view-btn"
  ngbTooltip="{{'submission.workflow.generic.view-help' | translate}}"
-  [routerLink]="[getWorkflowItemViewRoute((workflowitem$ | async))]">
+  [routerLink]="[getWorkflowItemViewRoute(workflowitem)]">
  <i class="fa fa-info-circle"></i> {{"submission.workflow.generic.view" | translate}}
 </button>
--- a/src/app/shared/mydspace-actions/pool-task/pool-task-actions.component.spec.ts
+++ b/src/app/shared/mydspace-actions/pool-task/pool-task-actions.component.spec.ts
@@ -4,7 +4,6 @@ import { Router } from '@angular/router';
 import { By } from '@angular/platform-browser';

 import { of as observableOf } from 'rxjs';
-import { cold } from 'jasmine-marbles';
 import { TranslateLoader, TranslateModule } from '@ngx-translate/core';

 import { TranslateLoaderMock } from '../../mocks/translate-loader.mock';
@@ -105,7 +104,9 @@ describe('PoolTaskActionsComponent', () => {
  beforeEach(() => {
    fixture = TestBed.createComponent(PoolTaskActionsComponent);
    component = fixture.componentInstance;
+    component.item = item;
    component.object = mockObject;
+    component.workflowitem = workflowitem;
    notificationsServiceStub = TestBed.inject(NotificationsService as any);
    router = TestBed.inject(Router as any);
    fixture.detectChanges();
@@ -120,11 +121,11 @@ describe('PoolTaskActionsComponent', () => {
    component.object = null;
    component.initObjects(mockObject);

+    expect(component.item).toEqual(item);
+
    expect(component.object).toEqual(mockObject);

-    expect(component.workflowitem$).toBeObservable(cold('(b|)', {
-      b: rdWorkflowitem.payload
-    }));
+    expect(component.workflowitem).toEqual(workflowitem);
  });

  it('should display claim task button', () => {
--- a/src/app/shared/mydspace-actions/pool-task/pool-task-actions.component.ts
+++ b/src/app/shared/mydspace-actions/pool-task/pool-task-actions.component.ts
@@ -2,19 +2,17 @@ import { Component, Injector, Input, OnDestroy } from '@angular/core';
 import { Router } from '@angular/router';

 import { Observable } from 'rxjs';
-import { filter, map, switchMap, take } from 'rxjs/operators';
+import { switchMap, take } from 'rxjs/operators';
 import { TranslateService } from '@ngx-translate/core';

 import { WorkflowItem } from '../../../core/submission/models/workflowitem.model';
 import { RemoteData } from '../../../core/data/remote-data';
 import { PoolTask } from '../../../core/tasks/models/pool-task-object.model';
 import { PoolTaskDataService } from '../../../core/tasks/pool-task-data.service';
-import { isNotUndefined } from '../../empty.util';
 import { NotificationsService } from '../../notifications/notifications.service';
 import { RequestService } from '../../../core/data/request.service';
 import { SearchService } from '../../../core/shared/search/search.service';
 import { ClaimedTaskDataService } from '../../../core/tasks/claimed-task-data.service';
-import { getFirstSucceededRemoteDataPayload } from '../../../core/shared/operators';
 import { Item } from '../../../core/shared/item.model';
 import { DSpaceObject } from '../../../core/shared/dspace-object.model';
 import { MyDSpaceReloadableActionsComponent } from '../mydspace-reloadable-actions';
@@ -36,10 +34,15 @@ export class PoolTaskActionsComponent extends MyDSpaceReloadableActionsComponent
   */
  @Input() object: PoolTask;

+  /**
+   * The item object that belonging to the PoolTask object
+   */
+  @Input() item: Item;
+
  /**
   * The workflowitem object that belonging to the PoolTask object
   */
-  public workflowitem$: Observable<WorkflowItem>;
+  @Input() workflowitem: WorkflowItem;

  /**
   * Anchor used to reload the pool task.
@@ -83,10 +86,6 @@ export class PoolTaskActionsComponent extends MyDSpaceReloadableActionsComponent
   */
  initObjects(object: PoolTask) {
    this.object = object;
-    this.workflowitem$ = (this.object.workflowitem as Observable<RemoteData<WorkflowItem>>).pipe(
-      filter((rd: RemoteData<WorkflowItem>) => ((!rd.isRequestPending) && isNotUndefined(rd.payload))),
-      map((rd: RemoteData<WorkflowItem>) => rd.payload),
-      take(1));
  }

  actionExecution(): Observable<ProcessTaskResponse> {
@@ -104,13 +103,7 @@ export class PoolTaskActionsComponent extends MyDSpaceReloadableActionsComponent
   * Retrieve the itemUuid.
   */
  initReloadAnchor() {
-    (this.object as any).workflowitem.pipe(
-      getFirstSucceededRemoteDataPayload(),
-      switchMap((workflowItem: WorkflowItem) => workflowItem.item.pipe(getFirstSucceededRemoteDataPayload())
-      ))
-      .subscribe((item: Item) => {
-        this.itemUuid = item.uuid;
-      });
+    this.itemUuid = this.item.uuid;
  }

  ngOnDestroy() {
--- a/src/app/shared/object-collection/object-collection.component.html
+++ b/src/app/shared/object-collection/object-collection.component.html
@@ -20,7 +20,7 @@
                [importable]="importable"
                [importConfig]="importConfig"
                (importObject)="importObject.emit($event)"
-                (contentChange)="contentChange.emit()"
+                (contentChange)="contentChange.emit($event)"
                (prev)="goPrev()"
                (next)="goNext()"
                *ngIf="(currentMode$ | async) === viewModeEnum.ListElement">
@@ -50,6 +50,7 @@
                  [context]="context"
                  [hidePaginationDetail]="hidePaginationDetail"
                  [showPaginator]="showPaginator"
+                  (contentChange)="contentChange.emit($event)"
                  *ngIf="(currentMode$ | async) === viewModeEnum.DetailedListElement">
 </ds-object-detail>

--- a/src/app/shared/object-collection/object-collection.component.ts
+++ b/src/app/shared/object-collection/object-collection.component.ts
@@ -59,6 +59,11 @@ export class ObjectCollectionComponent implements OnInit {
  @Input() hideGear = false;
  @Input() selectable = false;
  @Input() selectionConfig: {repeatable: boolean, listId: string};
+
+  /**
+   * Emit custom event for listable object custom actions.
+   */
+  @Output() customEvent = new EventEmitter<any>();
  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();

--- a/src/app/shared/object-collection/shared/listable-object/listable-object-component-loader.component.spec.ts
+++ b/src/app/shared/object-collection/shared/listable-object/listable-object-component-loader.component.spec.ts
@@ -5,7 +5,9 @@ import { ListableObject } from '../listable-object.model';
 import { GenericConstructor } from '../../../../core/shared/generic-constructor';
 import { Context } from '../../../../core/shared/context.model';
 import { ViewMode } from '../../../../core/shared/view-mode.model';
-import { ItemListElementComponent } from '../../../object-list/item-list-element/item-types/item/item-list-element.component';
+import {
+  ItemListElementComponent
+} from '../../../object-list/item-list-element/item-types/item/item-list-element.component';
 import { ListableObjectDirective } from './listable-object.directive';
 import { TranslateModule } from '@ngx-translate/core';
 import { By } from '@angular/platform-browser';
@@ -146,7 +148,7 @@ describe('ListableObjectComponentLoaderComponent', () => {
      expect((comp as any).instantiateComponent).not.toHaveBeenCalled();

      (listableComponent as any).reloadedObject.emit(reloadedObject);
-      tick();
+      tick(200);

      expect((comp as any).instantiateComponent).toHaveBeenCalledWith(reloadedObject);
    }));
@@ -155,7 +157,7 @@ describe('ListableObjectComponentLoaderComponent', () => {
      expect((comp as any).contentChange.emit).not.toHaveBeenCalled();

      (listableComponent as any).reloadedObject.emit(reloadedObject);
-      tick();
+      tick(200);

      expect((comp as any).contentChange.emit).toHaveBeenCalledWith(reloadedObject);
    }));
--- a/src/app/shared/object-collection/shared/listable-object/listable-object-component-loader.component.ts
+++ b/src/app/shared/object-collection/shared/listable-object/listable-object-component-loader.component.ts
@@ -1,17 +1,21 @@
 import {
+  ChangeDetectorRef,
  Component,
-  ComponentFactoryResolver,
+  ComponentRef,
  ElementRef,
+  EventEmitter,
  Input,
+  OnChanges,
  OnDestroy,
  OnInit,
  Output,
-  ViewChild,
-  EventEmitter,
  SimpleChanges,
-  OnChanges,
-  ComponentRef
+  ViewChild
 } from '@angular/core';
+
+import { Subscription } from 'rxjs';
+import { take } from 'rxjs/operators';
+
 import { ListableObject } from '../listable-object.model';
 import { ViewMode } from '../../../../core/shared/view-mode.model';
 import { Context } from '../../../../core/shared/context.model';
@@ -20,9 +24,7 @@ import { GenericConstructor } from '../../../../core/shared/generic-constructor'
 import { ListableObjectDirective } from './listable-object.directive';
 import { CollectionElementLinkType } from '../../collection-element-link.type';
 import { hasValue, isNotEmpty } from '../../../empty.util';
-import { Subscription } from 'rxjs';
 import { DSpaceObject } from '../../../../core/shared/dspace-object.model';
-import { take } from 'rxjs/operators';
 import { ThemeService } from '../../../theme-support/theme.service';

@Component({
@@ -82,7 +84,7 @@ export class ListableObjectComponentLoaderComponent implements OnInit, OnChanges
  /**
   * Directive hook used to place the dynamic child component
   */
-  @ViewChild(ListableObjectDirective, {static: true}) listableObjectDirective: ListableObjectDirective;
+  @ViewChild(ListableObjectDirective, { static: true }) listableObjectDirective: ListableObjectDirective;

  /**
   * View on the badges template, to be passed on to the loaded component (which will place the badges in the desired
@@ -132,10 +134,7 @@ export class ListableObjectComponentLoaderComponent implements OnInit, OnChanges
    'contentChange',
  ];

-  constructor(
-    private componentFactoryResolver: ComponentFactoryResolver,
-    private themeService: ThemeService
-  ) {
+  constructor(private cdr: ChangeDetectorRef, private themeService: ThemeService) {
  }

  /**
@@ -166,27 +165,30 @@ export class ListableObjectComponentLoaderComponent implements OnInit, OnChanges

    const component = this.getComponent(object.getRenderTypes(), this.viewMode, this.context);

-    const componentFactory = this.componentFactoryResolver.resolveComponentFactory(component);
-
    const viewContainerRef = this.listableObjectDirective.viewContainerRef;
    viewContainerRef.clear();

    this.compRef = viewContainerRef.createComponent(
-      componentFactory,
-      0,
-      undefined,
-      [
+      component, {
+        index: 0,
+        injector: undefined,
+        projectableNodes: [
          [this.badges.nativeElement],
-      ]);
+        ]
+      }
+    );

    this.connectInputsAndOutputs();

    if ((this.compRef.instance as any).reloadedObject) {
-      (this.compRef.instance as any).reloadedObject.pipe(take(1)).subscribe((reloadedObject: DSpaceObject) => {
+      (this.compRef.instance as any).reloadedObject.pipe(
+        take(1)
+      ).subscribe((reloadedObject: DSpaceObject) => {
        if (reloadedObject) {
          this.compRef.destroy();
          this.object = reloadedObject;
          this.instantiateComponent(reloadedObject);
+          this.cdr.detectChanges();
          this.contentChange.emit(reloadedObject);
        }
      });
--- a/src/app/shared/object-collection/shared/mydspace-item-submitter/item-submitter.component.html
+++ b/src/app/shared/object-collection/shared/mydspace-item-submitter/item-submitter.component.html
@@ -1,3 +1,3 @@
-<div class="mt-2 mb-2">
+<div class="mt-2 mb-2" *ngIf="(submitter$ | async)">
  <span class="text-muted">{{'submission.workflow.tasks.generic.submitter' | translate}} : <span class="badge badge-info">{{(submitter$ | async)?.name}}</span></span>
 </div>
--- a/src/app/shared/object-collection/shared/mydspace-item-submitter/item-submitter.component.spec.ts
+++ b/src/app/shared/object-collection/shared/mydspace-item-submitter/item-submitter.component.spec.ts
@@ -11,12 +11,11 @@ import { EPersonMock } from '../../../testing/eperson.mock';
 import { TranslateLoaderMock } from '../../../mocks/translate-loader.mock';
 import { By } from '@angular/platform-browser';
 import { createSuccessfulRemoteDataObject } from '../../../remote-data.utils';
+import { LinkService } from '../../../../core/cache/builders/link.service';
+import { getMockLinkService } from '../../../mocks/link-service.mock';

 let component: ItemSubmitterComponent;
 let fixture: ComponentFixture<ItemSubmitterComponent>;
-
-const compIndex = 1;
-
 let mockResultObject: PoolTask;

 const rdSumbitter = createSuccessfulRemoteDataObject(EPersonMock);
@@ -36,6 +35,9 @@ describe('ItemSubmitterComponent', () => {
        })
      ],
      declarations: [ItemSubmitterComponent],
+      providers: [
+        { provide: LinkService, useValue: getMockLinkService() },
+      ],
      schemas: [NO_ERRORS_SCHEMA]
    }).overrideComponent(ItemSubmitterComponent, {
      set: { changeDetection: ChangeDetectionStrategy.Default }
--- a/src/app/shared/object-collection/shared/mydspace-item-submitter/item-submitter.component.ts
+++ b/src/app/shared/object-collection/shared/mydspace-item-submitter/item-submitter.component.ts
@@ -1,12 +1,15 @@
 import { Component, Input, OnInit } from '@angular/core';

-import { Observable } from 'rxjs';
-import { filter, find, map, mergeMap } from 'rxjs/operators';
+import { EMPTY, Observable } from 'rxjs';
+import { map, mergeMap } from 'rxjs/operators';

 import { EPerson } from '../../../../core/eperson/models/eperson.model';
 import { RemoteData } from '../../../../core/data/remote-data';
-import { isNotEmpty, isNotUndefined } from '../../../empty.util';
+import { isNotEmpty } from '../../../empty.util';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
+import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
+import { LinkService } from '../../../../core/cache/builders/link.service';
+import { followLink } from '../../../utils/follow-link-config.model';

 /**
 * This component represents a badge with submitter information.
@@ -24,18 +27,38 @@ export class ItemSubmitterComponent implements OnInit {
  @Input() object: any;

  /**
-   * The Eperson object
+   * The submitter object
   */
  submitter$: Observable<EPerson>;

+  public constructor(protected linkService: LinkService) {
+
+  }
+
  /**
   * Initialize submitter object
   */
  ngOnInit() {
+    this.linkService.resolveLinks(this.object, followLink('workflowitem', {},
+      followLink('submitter',{})
+    ));
    this.submitter$ = (this.object.workflowitem as Observable<RemoteData<WorkflowItem>>).pipe(
-      filter((rd: RemoteData<WorkflowItem>) => (rd.hasSucceeded && isNotUndefined(rd.payload))),
-      mergeMap((rd: RemoteData<WorkflowItem>) => rd.payload.submitter as Observable<RemoteData<EPerson>>),
-      find((rd: RemoteData<EPerson>) => rd.hasSucceeded && isNotEmpty(rd.payload)),
-      map((rd: RemoteData<EPerson>) => rd.payload));
+      getFirstCompletedRemoteData(),
+      mergeMap((rd: RemoteData<WorkflowItem>) => {
+        if (rd.hasSucceeded && isNotEmpty(rd.payload)) {
+          return (rd.payload.submitter as Observable<RemoteData<EPerson>>).pipe(
+            getFirstCompletedRemoteData(),
+            map((rds: RemoteData<EPerson>) => {
+              if (rds.hasSucceeded && isNotEmpty(rds.payload)) {
+                return rds.payload;
+              } else {
+                return null;
+              }
+            })
+          );
+        } else {
+          return EMPTY;
+        }
+      }));
  }
 }
--- a/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.html
+++ b/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.html
@@ -1,10 +1,12 @@
-<ng-container *ngVar="(workflowitemRD$ | async)?.payload as workflowitem">
-  <ds-item-detail-preview *ngIf="workflowitem"
-                          [item]="(workflowitem.item | async)?.payload"
+<ng-container *ngIf="(workflowitem$ | async) && (item$ | async)">
+  <ds-item-detail-preview [item]="item$?.value"
                          [object]="object"
                          [showSubmitter]="showSubmitter"
                          [status]="status">
  </ds-item-detail-preview>

-  <ds-claimed-task-actions *ngIf="workflowitem" [object]="dso" (processCompleted)="reloadedObject.emit($event.reloadedObject)"></ds-claimed-task-actions>
+  <ds-claimed-task-actions [item]="item$.value"
+                           [object]="dso"
+                           [workflowitem]="workflowitem$.value"
+                           (processCompleted)="reloadedObject.emit($event.reloadedObject)"></ds-claimed-task-actions>
 </ng-container>
--- a/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.spec.ts
+++ b/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.spec.ts
@@ -1,5 +1,5 @@
 import { ChangeDetectionStrategy, NO_ERRORS_SCHEMA } from '@angular/core';
-import { ComponentFixture, TestBed, tick, waitForAsync, fakeAsync} from '@angular/core/testing';
+import { ComponentFixture, fakeAsync, flush, TestBed, tick, waitForAsync } from '@angular/core/testing';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';

 import { of as observableOf } from 'rxjs';
@@ -7,7 +7,9 @@ import { of as observableOf } from 'rxjs';
 import { Item } from '../../../../core/shared/item.model';
 import { ClaimedTaskSearchResultDetailElementComponent } from './claimed-task-search-result-detail-element.component';
 import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.model';
-import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import {
+  MyDspaceItemStatusType
+} from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { createSuccessfulRemoteDataObject } from '../../../remote-data.utils';
 import { ClaimedTaskSearchResult } from '../../../object-collection/shared/claimed-task-search-result.model';
@@ -15,6 +17,7 @@ import { VarDirective } from '../../../utils/var.directive';
 import { LinkService } from '../../../../core/cache/builders/link.service';
 import { getMockLinkService } from '../../../mocks/link-service.mock';
 import { By } from '@angular/platform-browser';
+import { ObjectCacheService } from '../../../../core/cache/object-cache.service';

 let component: ClaimedTaskSearchResultDetailElementComponent;
 let fixture: ComponentFixture<ClaimedTaskSearchResultDetailElementComponent>;
@@ -58,6 +61,9 @@ const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdIt
 const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new ClaimedTask(), { workflowitem: observableOf(rdWorkflowitem) });
 const linkService = getMockLinkService();
+const objectCacheServiceMock = jasmine.createSpyObj('ObjectCacheService', {
+  remove: jasmine.createSpy('remove')
+});

 describe('ClaimedTaskSearchResultDetailElementComponent', () => {
  beforeEach(waitForAsync(() => {
@@ -65,7 +71,8 @@ describe('ClaimedTaskSearchResultDetailElementComponent', () => {
      imports: [NoopAnimationsModule],
      declarations: [ClaimedTaskSearchResultDetailElementComponent, VarDirective],
      providers: [
-        { provide: LinkService, useValue: linkService }
+        { provide: LinkService, useValue: linkService },
+        { provide: ObjectCacheService, useValue: objectCacheServiceMock }
      ],
      schemas: [NO_ERRORS_SCHEMA]
    }).overrideComponent(ClaimedTaskSearchResultDetailElementComponent, {
@@ -83,18 +90,16 @@ describe('ClaimedTaskSearchResultDetailElementComponent', () => {
    fixture.detectChanges();
  });

-  it('should init workflowitem properly', (done) => {
-    component.workflowitemRD$.subscribe((workflowitemRD) => {
-      // Make sure the necessary links are being resolved
+  it('should init workflowitem properly', fakeAsync(() => {
+    flush();
    expect(linkService.resolveLinks).toHaveBeenCalledWith(
      component.dso,
      jasmine.objectContaining({ name: 'workflowitem' }),
      jasmine.objectContaining({ name: 'action' })
    );
-      expect(workflowitemRD.payload).toEqual(workflowitem);
-      done();
-    });
-  });
+    expect(component.workflowitem$.value).toEqual(workflowitem);
+    expect(component.item$.value).toEqual(item);
+  }));

  it('should have properly status', () => {
    expect(component.status).toEqual(MyDspaceItemStatusType.VALIDATION);
--- a/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.ts
+++ b/src/app/shared/object-detail/my-dspace-result-detail-element/claimed-task-search-result/claimed-task-search-result-detail-element.component.ts
@@ -1,17 +1,24 @@
-import { Component } from '@angular/core';
+import { Component, OnDestroy, OnInit } from '@angular/core';

-import { Observable } from 'rxjs';
+import { BehaviorSubject, EMPTY, Observable } from 'rxjs';
+import { mergeMap, tap } from 'rxjs/operators';

 import { RemoteData } from '../../../../core/data/remote-data';
 import { ViewMode } from '../../../../core/shared/view-mode.model';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.model';
 import { SearchResultDetailElementComponent } from '../search-result-detail-element.component';
-import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import {
+  MyDspaceItemStatusType
+} from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { listableObjectComponent } from '../../../object-collection/shared/listable-object/listable-object.decorator';
 import { ClaimedTaskSearchResult } from '../../../object-collection/shared/claimed-task-search-result.model';
 import { followLink } from '../../../utils/follow-link-config.model';
 import { LinkService } from '../../../../core/cache/builders/link.service';
+import { Item } from '../../../../core/shared/item.model';
+import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
+import { isNotEmpty } from '../../../empty.util';
+import { ObjectCacheService } from '../../../../core/cache/object-cache.service';

 /**
 * This component renders claimed task object for the search result in the detail view.
@@ -23,7 +30,12 @@ import { LinkService } from '../../../../core/cache/builders/link.service';
 })

@listableObjectComponent(ClaimedTaskSearchResult, ViewMode.DetailedListElement)
-export class ClaimedTaskSearchResultDetailElementComponent extends SearchResultDetailElementComponent<ClaimedTaskSearchResult, ClaimedTask> {
+export class ClaimedTaskSearchResultDetailElementComponent extends SearchResultDetailElementComponent<ClaimedTaskSearchResult, ClaimedTask> implements OnInit, OnDestroy  {
+
+  /**
+   * The item object that belonging to the result object
+   */
+  public item$: BehaviorSubject<Item> = new BehaviorSubject<Item>(null);

  /**
   * A boolean representing if to show submitter information
@@ -38,9 +50,9 @@ export class ClaimedTaskSearchResultDetailElementComponent extends SearchResultD
  /**
   * The workflowitem object that belonging to the result object
   */
-  public workflowitemRD$: Observable<RemoteData<WorkflowItem>>;
+  public workflowitem$: BehaviorSubject<WorkflowItem> = new BehaviorSubject<WorkflowItem>(null);

-  constructor(protected linkService: LinkService) {
+  constructor(protected linkService: LinkService, protected objectCache: ObjectCacheService) {
    super();
  }

@@ -53,7 +65,30 @@ export class ClaimedTaskSearchResultDetailElementComponent extends SearchResultD
      followLink('item', {}, followLink('bundles')),
      followLink('submitter')
    ), followLink('action'));
-    this.workflowitemRD$ = this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>;
+
+    (this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>).pipe(
+      getFirstCompletedRemoteData(),
+      mergeMap((wfiRD: RemoteData<WorkflowItem>) => {
+        if (wfiRD.hasSucceeded) {
+          this.workflowitem$.next(wfiRD.payload);
+          return (wfiRD.payload.item as Observable<RemoteData<Item>>).pipe(
+            getFirstCompletedRemoteData()
+          );
+        } else {
+          return EMPTY;
+        }
+      }),
+      tap((itemRD: RemoteData<Item>) => {
+        if (isNotEmpty(itemRD) && itemRD.hasSucceeded) {
+          this.item$.next(itemRD.payload);
+        }
+      })
+    ).subscribe();
+  }
+
+  ngOnDestroy() {
+    // This ensures the object is removed from cache, when action is performed on task
+    this.objectCache.remove(this.dso._links.workflowitem.href);
  }

 }
--- a/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.html
+++ b/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.html
@@ -1,9 +1,12 @@
-<ng-container *ngVar="(workflowitemRD$ | async)?.payload as workflowitem">
-  <ds-item-detail-preview *ngIf="workflowitem"
-                          [item]="(workflowitem?.item | async)?.payload"
+<ng-container *ngIf="(workflowitem$ | async) && (item$ | async)">
+  <ds-item-detail-preview [item]="item$?.value"
                          [object]="object"
                          [showSubmitter]="showSubmitter"
                          [status]="status"></ds-item-detail-preview>

-  <ds-pool-task-actions *ngIf="workflowitem" [object]="dso" (processCompleted)="reloadedObject.emit($event.reloadedObject)"></ds-pool-task-actions>
+  <ds-pool-task-actions [item]="item$.value"
+                        [object]="dso"
+                        [workflowitem]="workflowitem$.value"
+                        (processCompleted)="reloadedObject.emit($event.reloadedObject)"></ds-pool-task-actions>
 </ng-container>
+
--- a/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.spec.ts
+++ b/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.spec.ts
@@ -1,12 +1,14 @@
 import { ChangeDetectionStrategy, NO_ERRORS_SCHEMA } from '@angular/core';
-import { waitForAsync, ComponentFixture, TestBed, fakeAsync, tick } from '@angular/core/testing';
+import { ComponentFixture, fakeAsync, flush, TestBed, tick, waitForAsync } from '@angular/core/testing';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';

 import { of as observableOf } from 'rxjs';

 import { Item } from '../../../../core/shared/item.model';
 import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
-import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import {
+  MyDspaceItemStatusType
+} from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { createSuccessfulRemoteDataObject } from '../../../remote-data.utils';
 import { PoolSearchResultDetailElementComponent } from './pool-search-result-detail-element.component';
@@ -15,8 +17,7 @@ import { VarDirective } from '../../../utils/var.directive';
 import { LinkService } from '../../../../core/cache/builders/link.service';
 import { getMockLinkService } from '../../../mocks/link-service.mock';
 import { By } from '@angular/platform-browser';
-import { DSONameService } from '../../../../core/breadcrumbs/dso-name.service';
-import { DSONameServiceMock } from '../../../mocks/dso-name.service.mock';
+import { ObjectCacheService } from '../../../../core/cache/object-cache.service';

 let component: PoolSearchResultDetailElementComponent;
 let fixture: ComponentFixture<PoolSearchResultDetailElementComponent>;
@@ -60,6 +61,9 @@ const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdIt
 const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem) });
 const linkService = getMockLinkService();
+const objectCacheServiceMock = jasmine.createSpyObj('ObjectCacheService', {
+  remove: jasmine.createSpy('remove')
+});

 describe('PoolSearchResultDetailElementComponent', () => {
  beforeEach(waitForAsync(() => {
@@ -70,7 +74,7 @@ describe('PoolSearchResultDetailElementComponent', () => {
        { provide: 'objectElementProvider', useValue: (mockResultObject) },
        { provide: 'indexElementProvider', useValue: (compIndex) },
        { provide: LinkService, useValue: linkService },
-        { provide: DSONameService, useClass: DSONameServiceMock },
+        { provide: ObjectCacheService, useValue: objectCacheServiceMock }
      ],
      schemas: [NO_ERRORS_SCHEMA]
    }).overrideComponent(PoolSearchResultDetailElementComponent, {
@@ -88,17 +92,16 @@ describe('PoolSearchResultDetailElementComponent', () => {
    fixture.detectChanges();
  });

-  it('should init workflowitem properly', (done) => {
-    component.workflowitemRD$.subscribe((workflowitemRD) => {
+  it('should init workflowitem properly', fakeAsync(() => {
+    flush();
    expect(linkService.resolveLinks).toHaveBeenCalledWith(
      component.dso,
      jasmine.objectContaining({ name: 'workflowitem' }),
      jasmine.objectContaining({ name: 'action' })
    );
-      expect(workflowitemRD.payload).toEqual(workflowitem);
-      done();
-    });
-  });
+    expect(component.workflowitem$.value).toEqual(workflowitem);
+    expect(component.item$.value).toEqual(item);
+  }));

  it('should have properly status', () => {
    expect(component.status).toEqual(MyDspaceItemStatusType.WAITING_CONTROLLER);
--- a/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.ts
+++ b/src/app/shared/object-detail/my-dspace-result-detail-element/pool-search-result/pool-search-result-detail-element.component.ts
@@ -1,16 +1,24 @@
-import { Component } from '@angular/core';
+import { Component, OnDestroy, OnInit } from '@angular/core';
+
+import { BehaviorSubject, EMPTY, Observable } from 'rxjs';
+import { mergeMap, tap } from 'rxjs/operators';

-import { Observable } from 'rxjs';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
 import { SearchResultDetailElementComponent } from '../search-result-detail-element.component';
-import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import {
+  MyDspaceItemStatusType
+} from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { ViewMode } from '../../../../core/shared/view-mode.model';
 import { listableObjectComponent } from '../../../object-collection/shared/listable-object/listable-object.decorator';
 import { PoolTaskSearchResult } from '../../../object-collection/shared/pool-task-search-result.model';
 import { followLink } from '../../../utils/follow-link-config.model';
 import { LinkService } from '../../../../core/cache/builders/link.service';
+import { Item } from '../../../../core/shared/item.model';
+import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
+import { isNotEmpty } from '../../../empty.util';
+import { ObjectCacheService } from '../../../../core/cache/object-cache.service';

 /**
 * This component renders pool task object for the search result in the detail view.
@@ -22,7 +30,12 @@ import { LinkService } from '../../../../core/cache/builders/link.service';
 })

@listableObjectComponent(PoolTaskSearchResult, ViewMode.DetailedListElement)
-export class PoolSearchResultDetailElementComponent extends SearchResultDetailElementComponent<PoolTaskSearchResult, PoolTask> {
+export class PoolSearchResultDetailElementComponent extends SearchResultDetailElementComponent<PoolTaskSearchResult, PoolTask> implements OnInit, OnDestroy  {
+
+  /**
+   * The item object that belonging to the result object
+   */
+  public item$: BehaviorSubject<Item> = new BehaviorSubject<Item>(null);

  /**
   * A boolean representing if to show submitter information
@@ -37,9 +50,9 @@ export class PoolSearchResultDetailElementComponent extends SearchResultDetailEl
  /**
   * The workflowitem object that belonging to the result object
   */
-  public workflowitemRD$: Observable<RemoteData<WorkflowItem>>;
+  public workflowitem$: BehaviorSubject<WorkflowItem> = new BehaviorSubject<WorkflowItem>(null);

-  constructor(protected linkService: LinkService) {
+  constructor(protected linkService: LinkService, protected objectCache: ObjectCacheService) {
    super();
  }

@@ -52,7 +65,31 @@ export class PoolSearchResultDetailElementComponent extends SearchResultDetailEl
      followLink('item', {}, followLink('bundles')),
      followLink('submitter')
    ), followLink('action'));
-    this.workflowitemRD$ = this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>;
+
+    (this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>).pipe(
+      getFirstCompletedRemoteData(),
+      mergeMap((wfiRD: RemoteData<WorkflowItem>) => {
+        if (wfiRD.hasSucceeded) {
+          this.workflowitem$.next(wfiRD.payload);
+          return (wfiRD.payload.item as Observable<RemoteData<Item>>).pipe(
+            getFirstCompletedRemoteData()
+          );
+        } else {
+          return EMPTY;
+        }
+      }),
+      tap((itemRD: RemoteData<Item>) => {
+        if (isNotEmpty(itemRD) && itemRD.hasSucceeded) {
+          this.item$.next(itemRD.payload);
+        }
+      })
+    ).subscribe();
+
+  }
+
+  ngOnDestroy() {
+    // This ensures the object is removed from cache, when action is performed on task
+    this.objectCache.remove(this.dso._links.workflowitem.href);
  }

 }
--- a/src/app/shared/object-detail/object-detail.component.html
+++ b/src/app/shared/object-detail/object-detail.component.html
@@ -14,12 +14,14 @@
  (sortFieldChange)="onSortFieldChange($event)"
  (paginationChange)="onPaginationChange($event)"
  (prev)="goPrev()"
-  (next)="goNext()"
-  >
+  (next)="goNext()">
    <div class="row mt-2" *ngIf="objects?.hasSucceeded" @fadeIn>
      <div class="col"
           *ngFor="let object of objects?.payload?.page">
-        <ds-listable-object-component-loader [object]="object" [viewMode]="viewMode" [context]="context"></ds-listable-object-component-loader>
+        <ds-listable-object-component-loader [object]="object"
+                                             [viewMode]="viewMode"
+                                             [context]="context"
+                                             (contentChange)="contentChange.emit($event)"></ds-listable-object-component-loader>
      </div>
    </div>
  <ds-error *ngIf="objects.hasFailed" message="{{'error.objects' | translate}}"></ds-error>
--- a/src/app/shared/object-detail/object-detail.component.ts
+++ b/src/app/shared/object-detail/object-detail.component.ts
@@ -1,11 +1,4 @@
-import {
-  ChangeDetectionStrategy,
-  Component,
-  EventEmitter,
-  Input,
-  Output,
-  ViewEncapsulation
-} from '@angular/core';
+import { ChangeDetectionStrategy, Component, EventEmitter, Input, Output, ViewEncapsulation } from '@angular/core';

 import { SortDirection, SortOptions } from '../../core/cache/models/sort-options.model';
 import { PaginatedList } from '../../core/data/paginated-list.model';
@@ -71,6 +64,11 @@ export class ObjectDetailComponent {
   */
  @Input() showPaginator = true;

+  /**
+   * Emit when one of the listed object has changed.
+   */
+  @Output() contentChange = new EventEmitter<any>();
+
  /**
   * If showPaginator is set to true, emit when the previous button is clicked
   */
--- a/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.html
+++ b/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.html
@@ -1,9 +1,15 @@
-<ng-container *ngVar="(workflowitemRD$ | async)?.payload as workflowitem">
-  <ds-themed-item-list-preview *ngIf="workflowitem"
-                        [item]="(workflowitem?.item | async)?.payload"
+<ng-container *ngIf="(workflowitem$ | async) && (item$ | async)">
+  <ds-themed-item-list-preview [item]="item$.value"
                               [object]="object"
                               [showSubmitter]="showSubmitter"
                               [status]="status"></ds-themed-item-list-preview>
-  <ds-claimed-task-actions *ngIf="workflowitem" [object]="dso" (processCompleted)="reloadedObject.emit($event.reloadedObject)"></ds-claimed-task-actions>
-</ng-container>

+  <div class="row">
+    <div [ngClass]="showThumbnails ? 'offset-3 offset-md-2 pl-3' : ''">
+      <ds-claimed-task-actions [item]="item$.value"
+                               [object]="dso"
+                               [workflowitem]="workflowitem$.value"
+                               (processCompleted)="reloadedObject.emit($event.reloadedObject)"></ds-claimed-task-actions>
+    </div>
+  </div>
+</ng-container>
--- a/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.spec.ts
+++ b/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.spec.ts
@@ -1,5 +1,5 @@
 import { ChangeDetectionStrategy, NO_ERRORS_SCHEMA } from '@angular/core';
-import { ComponentFixture, fakeAsync, TestBed, tick, waitForAsync } from '@angular/core/testing';
+import { ComponentFixture, fakeAsync, flush, TestBed, tick, waitForAsync } from '@angular/core/testing';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';

 import { of as observableOf } from 'rxjs';
@@ -7,7 +7,9 @@ import { of as observableOf } from 'rxjs';
 import { Item } from '../../../../core/shared/item.model';
 import { ClaimedSearchResultListElementComponent } from './claimed-search-result-list-element.component';
 import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.model';
-import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import {
+  MyDspaceItemStatusType
+} from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { createSuccessfulRemoteDataObject } from '../../../remote-data.utils';
 import { ClaimedTaskSearchResult } from '../../../object-collection/shared/claimed-task-search-result.model';
@@ -20,6 +22,7 @@ import { DSONameService } from '../../../../core/breadcrumbs/dso-name.service';
 import { DSONameServiceMock } from '../../../mocks/dso-name.service.mock';
 import { APP_CONFIG } from '../../../../../config/app-config.interface';
 import { environment } from '../../../../../environments/environment';
+import { ObjectCacheService } from '../../../../core/cache/object-cache.service';

 let component: ClaimedSearchResultListElementComponent;
 let fixture: ComponentFixture<ClaimedSearchResultListElementComponent>;
@@ -61,6 +64,9 @@ const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdIt
 const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new ClaimedTask(), { workflowitem: observableOf(rdWorkflowitem) });
 const linkService = getMockLinkService();
+const objectCacheServiceMock = jasmine.createSpyObj('ObjectCacheService', {
+  remove: jasmine.createSpy('remove')
+});

 describe('ClaimedSearchResultListElementComponent', () => {
  beforeEach(waitForAsync(() => {
@@ -71,7 +77,8 @@ describe('ClaimedSearchResultListElementComponent', () => {
        { provide: TruncatableService, useValue: {} },
        { provide: LinkService, useValue: linkService },
        { provide: DSONameService, useClass: DSONameServiceMock },
-        { provide: APP_CONFIG, useValue: environment }
+        { provide: APP_CONFIG, useValue: environment },
+        { provide: ObjectCacheService, useValue: objectCacheServiceMock }
      ],
      schemas: [NO_ERRORS_SCHEMA]
    }).overrideComponent(ClaimedSearchResultListElementComponent, {
@@ -89,17 +96,16 @@ describe('ClaimedSearchResultListElementComponent', () => {
    fixture.detectChanges();
  });

-  it('should init workflowitem properly', (done) => {
-    component.workflowitemRD$.subscribe((workflowitemRD) => {
+  it('should init workflowitem properly', fakeAsync(() => {
+    flush();
    expect(linkService.resolveLinks).toHaveBeenCalledWith(
      component.dso,
      jasmine.objectContaining({ name: 'workflowitem' }),
      jasmine.objectContaining({ name: 'action' })
    );
-      expect(workflowitemRD.payload).toEqual(workflowitem);
-      done();
-    });
-  });
+    expect(component.workflowitem$.value).toEqual(workflowitem);
+    expect(component.item$.value).toEqual(item);
+  }));

  it('should have properly status', () => {
    expect(component.status).toEqual(MyDspaceItemStatusType.VALIDATION);
--- a/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.ts
+++ b/src/app/shared/object-list/my-dspace-result-list-element/claimed-search-result/claimed-search-result-list-element.component.ts
@@ -1,19 +1,28 @@
-import { Component, Inject } from '@angular/core';
+import { Component, Inject, OnDestroy, OnInit } from '@angular/core';

 import { ViewMode } from '../../../../core/shared/view-mode.model';
 import { listableObjectComponent } from '../../../object-collection/shared/listable-object/listable-object.decorator';
 import { ClaimedTaskSearchResult } from '../../../object-collection/shared/claimed-task-search-result.model';
 import { LinkService } from '../../../../core/cache/builders/link.service';
 import { TruncatableService } from '../../../truncatable/truncatable.service';
-import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
-import { Observable } from 'rxjs';
+import {
+  MyDspaceItemStatusType
+} from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import { BehaviorSubject, EMPTY, Observable } from 'rxjs';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { followLink } from '../../../utils/follow-link-config.model';
-import { SearchResultListElementComponent } from '../../search-result-list-element/search-result-list-element.component';
+import {
+  SearchResultListElementComponent
+} from '../../search-result-list-element/search-result-list-element.component';
 import { ClaimedTask } from '../../../../core/tasks/models/claimed-task-object.model';
 import { DSONameService } from '../../../../core/breadcrumbs/dso-name.service';
 import { APP_CONFIG, AppConfig } from '../../../../../config/app-config.interface';
+import { ObjectCacheService } from '../../../../core/cache/object-cache.service';
+import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
+import { Item } from '../../../../core/shared/item.model';
+import { mergeMap, tap } from 'rxjs/operators';
+import { isNotEmpty } from '../../../empty.util';

@Component({
  selector: 'ds-claimed-search-result-list-element',
@@ -21,7 +30,7 @@ import { APP_CONFIG, AppConfig } from '../../../../../config/app-config.interfac
  templateUrl: './claimed-search-result-list-element.component.html'
 })
@listableObjectComponent(ClaimedTaskSearchResult, ViewMode.ListElement)
-export class ClaimedSearchResultListElementComponent extends SearchResultListElementComponent<ClaimedTaskSearchResult, ClaimedTask> {
+export class ClaimedSearchResultListElementComponent extends SearchResultListElementComponent<ClaimedTaskSearchResult, ClaimedTask> implements OnInit, OnDestroy {

  /**
   * A boolean representing if to show submitter information
@@ -33,15 +42,26 @@ export class ClaimedSearchResultListElementComponent extends SearchResultListEle
   */
  public status = MyDspaceItemStatusType.VALIDATION;

+  /**
+   * The item object that belonging to the result object
+   */
+  public item$: BehaviorSubject<Item> = new BehaviorSubject<Item>(null);
+
  /**
   * The workflowitem object that belonging to the result object
   */
-  public workflowitemRD$: Observable<RemoteData<WorkflowItem>>;
+  public workflowitem$: BehaviorSubject<WorkflowItem> = new BehaviorSubject<WorkflowItem>(null);
+
+  /**
+   * Display thumbnails if required by configuration
+   */
+  showThumbnails: boolean;

  public constructor(
    protected linkService: LinkService,
    protected truncatableService: TruncatableService,
    protected dsoNameService: DSONameService,
+    protected objectCache: ObjectCacheService,
    @Inject(APP_CONFIG) protected appConfig: AppConfig
  ) {
    super(truncatableService, dsoNameService, appConfig);
@@ -53,9 +73,35 @@ export class ClaimedSearchResultListElementComponent extends SearchResultListEle
  ngOnInit() {
    super.ngOnInit();
    this.linkService.resolveLinks(this.dso, followLink('workflowitem', {},
-      followLink('item'), followLink('submitter')
+      followLink('item', {}, followLink('bundles')),
+      followLink('submitter')
    ), followLink('action'));
-    this.workflowitemRD$ = this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>;
+
+    (this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>).pipe(
+      getFirstCompletedRemoteData(),
+      mergeMap((wfiRD: RemoteData<WorkflowItem>) => {
+        if (wfiRD.hasSucceeded) {
+          this.workflowitem$.next(wfiRD.payload);
+          return (wfiRD.payload.item as Observable<RemoteData<Item>>).pipe(
+            getFirstCompletedRemoteData()
+          );
+        } else {
+          return EMPTY;
+        }
+      }),
+      tap((itemRD: RemoteData<Item>) => {
+        if (isNotEmpty(itemRD) && itemRD.hasSucceeded) {
+          this.item$.next(itemRD.payload);
+        }
+      })
+    ).subscribe();
+
+    this.showThumbnails = this.appConfig.browseBy.showThumbnails;
+  }
+
+  ngOnDestroy() {
+    // This ensures the object is removed from cache, when action is performed on task
+    this.objectCache.remove(this.dso._links.workflowitem.href);
  }

 }
--- a/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.html
+++ b/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.html
@@ -1,12 +1,14 @@
-<ng-container *ngVar="(workflowitemRD$ | async)?.payload as workflowitem">
-  <ds-themed-item-list-preview *ngIf="workflowitem"
-                        [item]="(workflowitem?.item | async)?.payload"
+<ng-container *ngIf="(workflowitem$ | async) && (item$ | async)">
+  <ds-themed-item-list-preview [item]="item$.value"
                               [object]="object"
                               [showSubmitter]="showSubmitter"
                               [status]="status"></ds-themed-item-list-preview>
  <div class="row">
    <div [ngClass]="showThumbnails ? 'offset-3 offset-md-2 pl-3' : ''">
-      <ds-pool-task-actions id="actions" *ngIf="workflowitem" [object]="dso"
+      <ds-pool-task-actions id="actions"
+                            [item]="item$.value"
+                            [object]="dso"
+                            [workflowitem]="workflowitem$.value"
                            (processCompleted)="this.reloadedObject.emit($event.reloadedObject)"></ds-pool-task-actions>
    </div>
  </div>
--- a/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.spec.ts
+++ b/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.spec.ts
@@ -1,5 +1,5 @@
 import { ChangeDetectionStrategy, NO_ERRORS_SCHEMA } from '@angular/core';
-import { waitForAsync, ComponentFixture, fakeAsync, TestBed, tick } from '@angular/core/testing';
+import { ComponentFixture, fakeAsync, flush, TestBed, tick, waitForAsync } from '@angular/core/testing';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';

 import { of as observableOf } from 'rxjs';
@@ -7,7 +7,9 @@ import { of as observableOf } from 'rxjs';
 import { Item } from '../../../../core/shared/item.model';
 import { PoolSearchResultListElementComponent } from './pool-search-result-list-element.component';
 import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
-import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import {
+  MyDspaceItemStatusType
+} from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { createSuccessfulRemoteDataObject } from '../../../remote-data.utils';
 import { PoolTaskSearchResult } from '../../../object-collection/shared/pool-task-search-result.model';
@@ -19,6 +21,7 @@ import { By } from '@angular/platform-browser';
 import { DSONameService } from '../../../../core/breadcrumbs/dso-name.service';
 import { DSONameServiceMock } from '../../../mocks/dso-name.service.mock';
 import { APP_CONFIG } from '../../../../../config/app-config.interface';
+import { ObjectCacheService } from '../../../../core/cache/object-cache.service';

 let component: PoolSearchResultListElementComponent;
 let fixture: ComponentFixture<PoolSearchResultListElementComponent>;
@@ -67,6 +70,9 @@ const workflowitem = Object.assign(new WorkflowItem(), { item: observableOf(rdIt
 const rdWorkflowitem = createSuccessfulRemoteDataObject(workflowitem);
 mockResultObject.indexableObject = Object.assign(new PoolTask(), { workflowitem: observableOf(rdWorkflowitem) });
 const linkService = getMockLinkService();
+const objectCacheServiceMock = jasmine.createSpyObj('ObjectCacheService', {
+  remove: jasmine.createSpy('remove')
+});

 describe('PoolSearchResultListElementComponent', () => {
  beforeEach(waitForAsync(() => {
@@ -77,7 +83,8 @@ describe('PoolSearchResultListElementComponent', () => {
        { provide: TruncatableService, useValue: {} },
        { provide: LinkService, useValue: linkService },
        { provide: DSONameService, useClass: DSONameServiceMock },
-        { provide: APP_CONFIG, useValue: environmentUseThumbs }
+        { provide: APP_CONFIG, useValue: environmentUseThumbs },
+        { provide: ObjectCacheService, useValue: objectCacheServiceMock }
      ],
      schemas: [NO_ERRORS_SCHEMA]
    }).overrideComponent(PoolSearchResultListElementComponent, {
@@ -95,17 +102,16 @@ describe('PoolSearchResultListElementComponent', () => {
    fixture.detectChanges();
  });

-  it('should init workflowitem properly', (done) => {
-    component.workflowitemRD$.subscribe((workflowitemRD) => {
+  it('should init workflowitem properly', fakeAsync(() => {
+    flush();
    expect(linkService.resolveLinks).toHaveBeenCalledWith(
      component.dso,
      jasmine.objectContaining({ name: 'workflowitem' }),
      jasmine.objectContaining({ name: 'action' })
    );
-      expect(workflowitemRD.payload).toEqual(workflowitem);
-      done();
-    });
-  });
+    expect(component.workflowitem$.value).toEqual(workflowitem);
+    expect(component.item$.value).toEqual(item);
+  }));

  it('should have properly status', () => {
    expect(component.status).toEqual(MyDspaceItemStatusType.WAITING_CONTROLLER);
--- a/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.ts
+++ b/src/app/shared/object-list/my-dspace-result-list-element/pool-search-result/pool-search-result-list-element.component.ts
@@ -1,20 +1,29 @@
-import { Component, Inject, OnInit } from '@angular/core';
+import { Component, Inject, OnDestroy, OnInit } from '@angular/core';

-import { Observable } from 'rxjs';
+import { BehaviorSubject, EMPTY, Observable } from 'rxjs';
+import { mergeMap, tap } from 'rxjs/operators';

 import { ViewMode } from '../../../../core/shared/view-mode.model';
 import { RemoteData } from '../../../../core/data/remote-data';
 import { WorkflowItem } from '../../../../core/submission/models/workflowitem.model';
 import { PoolTask } from '../../../../core/tasks/models/pool-task-object.model';
-import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
+import {
+  MyDspaceItemStatusType
+} from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { listableObjectComponent } from '../../../object-collection/shared/listable-object/listable-object.decorator';
 import { PoolTaskSearchResult } from '../../../object-collection/shared/pool-task-search-result.model';
-import { SearchResultListElementComponent } from '../../search-result-list-element/search-result-list-element.component';
+import {
+  SearchResultListElementComponent
+} from '../../search-result-list-element/search-result-list-element.component';
 import { TruncatableService } from '../../../truncatable/truncatable.service';
 import { followLink } from '../../../utils/follow-link-config.model';
 import { LinkService } from '../../../../core/cache/builders/link.service';
 import { DSONameService } from '../../../../core/breadcrumbs/dso-name.service';
 import { APP_CONFIG, AppConfig } from '../../../../../config/app-config.interface';
+import { ObjectCacheService } from '../../../../core/cache/object-cache.service';
+import { getFirstCompletedRemoteData } from '../../../../core/shared/operators';
+import { Item } from '../../../../core/shared/item.model';
+import { isNotEmpty } from '../../../empty.util';

 /**
 * This component renders pool task object for the search result in the list view.
@@ -26,7 +35,7 @@ import { APP_CONFIG, AppConfig } from '../../../../../config/app-config.interfac
 })

@listableObjectComponent(PoolTaskSearchResult, ViewMode.ListElement)
-export class PoolSearchResultListElementComponent extends SearchResultListElementComponent<PoolTaskSearchResult, PoolTask> implements OnInit {
+export class PoolSearchResultListElementComponent extends SearchResultListElementComponent<PoolTaskSearchResult, PoolTask>  implements OnInit, OnDestroy {

  /**
   * A boolean representing if to show submitter information
@@ -38,10 +47,15 @@ export class PoolSearchResultListElementComponent extends SearchResultListElemen
   */
  public status = MyDspaceItemStatusType.WAITING_CONTROLLER;

+  /**
+   * The item object that belonging to the result object
+   */
+  public item$: BehaviorSubject<Item> = new BehaviorSubject<Item>(null);
+
  /**
   * The workflowitem object that belonging to the result object
   */
-  public workflowitemRD$: Observable<RemoteData<WorkflowItem>>;
+  public workflowitem$: BehaviorSubject<WorkflowItem> = new BehaviorSubject<WorkflowItem>(null);

  /**
   * The index of this list element
@@ -57,6 +71,7 @@ export class PoolSearchResultListElementComponent extends SearchResultListElemen
    protected linkService: LinkService,
    protected truncatableService: TruncatableService,
    protected dsoNameService: DSONameService,
+    protected objectCache: ObjectCacheService,
    @Inject(APP_CONFIG) protected appConfig: AppConfig
  ) {
    super(truncatableService, dsoNameService, appConfig);
@@ -68,10 +83,34 @@ export class PoolSearchResultListElementComponent extends SearchResultListElemen
  ngOnInit() {
    super.ngOnInit();
    this.linkService.resolveLinks(this.dso, followLink('workflowitem', {},
-      followLink('item'), followLink('submitter')
+      followLink('item', {}, followLink('bundles')),
+      followLink('submitter')
    ), followLink('action'));
-    this.workflowitemRD$ = this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>;
+
+    (this.dso.workflowitem as Observable<RemoteData<WorkflowItem>>).pipe(
+      getFirstCompletedRemoteData(),
+      mergeMap((wfiRD: RemoteData<WorkflowItem>) => {
+        if (wfiRD.hasSucceeded) {
+          this.workflowitem$.next(wfiRD.payload);
+          return (wfiRD.payload.item as Observable<RemoteData<Item>>).pipe(
+            getFirstCompletedRemoteData()
+          );
+        } else {
+          return EMPTY;
+        }
+      }),
+      tap((itemRD: RemoteData<Item>) => {
+        if (isNotEmpty(itemRD) && itemRD.hasSucceeded) {
+          this.item$.next(itemRD.payload);
+        }
+      })
+    ).subscribe();
+
    this.showThumbnails = this.appConfig.browseBy.showThumbnails;
  }

+  ngOnDestroy() {
+    // This ensures the object is removed from cache, when action is performed on task
+    this.objectCache.remove(this.dso._links.workflowitem.href);
+  }
 }
--- a/src/app/shared/object-list/object-list.component.html
+++ b/src/app/shared/object-list/object-list.component.html
@@ -14,8 +14,7 @@
        (sortFieldChange)="onSortFieldChange($event)"
        (paginationChange)="onPaginationChange($event)"
        (prev)="goPrev()"
-        (next)="goNext()"
-        >
+        (next)="goNext()">
    <ul *ngIf="objects?.hasSucceeded" class="list-unstyled" [ngClass]="{'ml-4': selectable}">
        <li *ngFor="let object of objects?.payload?.page; let i = index; let last = last" class="mt-4 mb-4 d-flex" [class.border-bottom]="hasBorder && !last" [attr.data-test]="'list-object' | dsBrowserOnly">
          <ds-selectable-list-item-control *ngIf="selectable" [index]="i"
@@ -28,8 +27,7 @@
                                           (importObject)="importObject.emit($event)"></ds-importable-list-item-control>
          <ds-listable-object-component-loader [object]="object" [viewMode]="viewMode" [index]="i" [context]="context" [linkType]="linkType"
                                               [listID]="selectionConfig?.listId"
-                                               (contentChange)="contentChange.emit()"
-          ></ds-listable-object-component-loader>
+                                               (contentChange)="contentChange.emit($event)"></ds-listable-object-component-loader>
        </li>
    </ul>
 </ds-pagination>
--- a/src/app/shared/object-list/object-list.component.ts
+++ b/src/app/shared/object-list/object-list.component.ts
@@ -74,7 +74,7 @@ export class ObjectListComponent {
  /**
   * Config used for the import button
   */
-  @Input() importConfig: { importLabel: string };
+  @Input() importConfig: { buttonLabel: string };

  /**
   * Whether or not the pagination should be rendered as simple previous and next buttons instead of the normal pagination
@@ -221,4 +221,5 @@ export class ObjectListComponent {
  goNext() {
      this.next.emit(true);
  }
+
 }
--- a/src/app/shared/sass-helper/css-variable.actions.ts
+++ b/src/app/shared/sass-helper/css-variable.actions.ts
@@ -1,5 +1,7 @@
+/* eslint-disable max-classes-per-file */
 import { Action } from '@ngrx/store';
 import { type } from '../ngrx/type';
+import { KeyValuePair } from '../key-value-pair.model';

 /**
 * For each action type in an action group, make a simple
@@ -11,6 +13,8 @@ import { type } from '../ngrx/type';
 */
 export const CSSVariableActionTypes = {
  ADD: type('dspace/css-variables/ADD'),
+  ADD_ALL: type('dspace/css-variables/ADD_ALL'),
+  CLEAR: type('dspace/css-variables/CLEAR'),
 };

 export class AddCSSVariableAction implements Action {
@@ -24,5 +28,17 @@ export class AddCSSVariableAction implements Action {
    this.payload = {name, value};
  }
 }
+export class AddAllCSSVariablesAction implements Action {
+  type = CSSVariableActionTypes.ADD_ALL;
+  payload: KeyValuePair<string, string>[];

-export type CSSVariableAction = AddCSSVariableAction;
+  constructor(variables: KeyValuePair<string, string>[]) {
+    this.payload = variables;
+  }
+}
+
+export class ClearCSSVariablesAction implements Action {
+  type = CSSVariableActionTypes.CLEAR;
+}
+
+export type CSSVariableAction = AddCSSVariableAction | AddAllCSSVariablesAction | ClearCSSVariablesAction;
--- a/src/app/shared/sass-helper/css-variable.reducer.ts
+++ b/src/app/shared/sass-helper/css-variable.reducer.ts
@@ -0,0 +1,30 @@
+import { CSSVariableAction, CSSVariableActionTypes } from './css-variable.actions';
+import { KeyValuePair } from '../key-value-pair.model';
+
+export interface CSSVariablesState {
+  [name: string]: string;
+}
+
+const initialState: CSSVariablesState = Object.create({});
+
+/**
+ * Reducer that handles the state of CSS variables in the store
+ * @param state The current state of the store
+ * @param action The action to apply onto the current state of the store
+ */
+export function cssVariablesReducer(state = initialState, action: CSSVariableAction): CSSVariablesState {
+  switch (action.type) {
+    case CSSVariableActionTypes.ADD: {
+      const variable = action.payload;
+      return Object.assign({}, state, { [variable.name]: variable.value });
+    } case CSSVariableActionTypes.ADD_ALL: {
+      const variables = action.payload;
+      return Object.assign({}, state, ...variables.map(({ key, value }: KeyValuePair<string, string>) => {return {[key]: value};}));
+    } case CSSVariableActionTypes.CLEAR: {
+      return initialState;
+    }
+    default: {
+      return state;
+    }
+  }
+}
--- a/src/app/shared/sass-helper/css-variable.service.spec.ts
+++ b/src/app/shared/sass-helper/css-variable.service.spec.ts
@@ -0,0 +1,78 @@
+import { TestBed } from '@angular/core/testing';
+import { CSSVariableService } from './css-variable.service';
+import { MockStore, provideMockStore } from '@ngrx/store/testing';
+import { getTestScheduler } from 'jasmine-marbles';
+import { buildPaginatedList } from '../../core/data/paginated-list.model';
+import { PageInfo } from '../../core/shared/page-info.model';
+import { KeyValuePair } from '../key-value-pair.model';
+
+describe('CSSVariableService', () => {
+  let store: MockStore;
+
+  let service: CSSVariableService;
+  let initialState;
+  const varKey1 = '--test-1';
+  const varValue1 = 'test-value-1';
+  const varKey2 = '--test-2';
+  const varValue2 = 'test-value-2';
+  const varKey3 = '--test-3';
+  const varValue3 = 'test-value-3';
+  const queryInAll = 'test';
+  const queryFor3 = '3';
+
+  function init() {
+    initialState = {
+      ['cssVariables']: {
+        [varKey1]: varValue1,
+        [varKey2]: varValue2,
+        [varKey3]: varValue3,
+      }
+    };
+  }
+
+  beforeEach(() => {
+    init();
+    TestBed.configureTestingModule({
+      providers: [
+        CSSVariableService,
+        provideMockStore({ initialState }),
+      ],
+    });
+    service = TestBed.inject(CSSVariableService as any);
+    store = TestBed.inject(MockStore as any);
+  });
+
+  it('should create', () => {
+    expect(service).toBeTruthy();
+  });
+
+  describe('searchVariable', () => {
+    it('should return the right keys and variables in a paginated list for query that returns all 3 results', () => {
+      const currentPage = 1;
+      const pageSize = 5;
+      const pageInfo = new PageInfo({ currentPage, elementsPerPage: pageSize, totalPages: 1, totalElements: 3 });
+      const page: KeyValuePair<string, string>[] = [{ key: varKey1, value: varValue1 }, { key: varKey2, value: varValue2 }, { key: varKey3, value: varValue3 }];
+      const result = buildPaginatedList(pageInfo, page);
+      getTestScheduler().expectObservable(service.searchVariable(queryInAll, { currentPage, pageSize } as any)).toBe('a', { a: result });
+    });
+
+    it('should return the right keys and variables in a paginated list for query that returns only the 3rd results', () => {
+      const currentPage = 1;
+      const pageSize = 5;
+      const pageInfo = new PageInfo({ currentPage, elementsPerPage: pageSize, totalPages: 1, totalElements: 1 });
+      const page: KeyValuePair<string, string>[] = [{ key: varKey3, value: varValue3 }];
+      const result = buildPaginatedList(pageInfo, page);
+      getTestScheduler().expectObservable(service.searchVariable(queryFor3, { currentPage, pageSize } as any)).toBe('a', { a: result });
+    });
+
+    it('should return the right keys and variables in a paginated list that\'s not longer than the page size', () => {
+      const currentPage = 1;
+      const pageSize = 2;
+      const pageInfo = new PageInfo({ currentPage, elementsPerPage: pageSize, totalPages: 2, totalElements: 3 });
+      const page: KeyValuePair<string, string>[] = [{ key: varKey1, value: varValue1 }, { key: varKey2, value: varValue2 }];
+      const result = buildPaginatedList(pageInfo, page);
+      getTestScheduler().expectObservable(service.searchVariable(queryInAll, { currentPage, pageSize } as any)).toBe('a', { a: result });
+    });
+  });
+
+});
--- a/src/app/shared/sass-helper/css-variable.service.ts
+++ b/src/app/shared/sass-helper/css-variable.service.ts
@@ -0,0 +1,161 @@
+import { Injectable } from '@angular/core';
+import { AppState, keySelector } from '../../app.reducer';
+import { createSelector, MemoizedSelector, select, Store } from '@ngrx/store';
+import { AddAllCSSVariablesAction, AddCSSVariableAction, ClearCSSVariablesAction } from './css-variable.actions';
+import { PaginationComponentOptions } from '../pagination/pagination-component-options.model';
+import { buildPaginatedList, PaginatedList } from '../../core/data/paginated-list.model';
+import { Observable } from 'rxjs';
+import { hasValue, isNotEmpty } from '../empty.util';
+import { KeyValuePair } from '../key-value-pair.model';
+import { PageInfo } from '../../core/shared/page-info.model';
+import { CSSVariablesState } from './css-variable.reducer';
+
+/**
+ * This service deals with adding and retrieving CSS variables to and from the store
+ */
+@Injectable({
+  providedIn: 'root'
+})
+export class CSSVariableService {
+  isSameDomain = (styleSheet) => {
+    // Internal style blocks won't have an href value
+    if (!styleSheet.href) {
+      return true;
+    }
+
+    return styleSheet.href.indexOf(window.location.origin) === 0;
+  };
+
+  /*
+   Determine if the given rule is a CSSStyleRule
+   See: https://developer.mozilla.org/en-US/docs/Web/API/CSSRule#Type_constants
+  */
+  isStyleRule = (rule) => rule.type === 1;
+
+  constructor(
+    protected store: Store<AppState>) {
+  }
+
+  /**
+   * Adds a CSS variable to the store
+   * @param name The name/key of the CSS variable
+   * @param value The value of the CSS variable
+   */
+  addCSSVariable(name: string, value: string) {
+    this.store.dispatch(new AddCSSVariableAction(name, value));
+  }
+
+  /**
+   * Adds multiples CSS variables to the store
+   * @param variables The key-value pairs with the CSS variables to be added
+   */
+  addCSSVariables(variables: KeyValuePair<string, string>[]) {
+    this.store.dispatch(new AddAllCSSVariablesAction(variables));
+  }
+
+  /**
+   * Clears all CSS variables ƒrom the store
+   */
+  clearCSSVariables() {
+    this.store.dispatch(new ClearCSSVariablesAction());
+  }
+
+  /**
+   * Returns the value of a specific CSS key
+   * @param name The name/key of the CSS value
+   */
+  getVariable(name: string): Observable<string> {
+    return this.store.pipe(select(themeVariableByNameSelector(name)));
+  }
+
+  /**
+   * Returns the CSSVariablesState of the store containing all variables
+   */
+  getAllVariables(): Observable<CSSVariablesState> {
+    return this.store.pipe(select(themeVariablesSelector));
+  }
+
+  /**
+   * Method to find CSS variables by their partially supplying their key. Case sensitive. Returns a paginated list of KeyValuePairs with CSS variables that match the query.
+   * @param query The query to look for in the keys
+   * @param paginationOptions The pagination options for the requested page
+   */
+  searchVariable(query: string, paginationOptions: PaginationComponentOptions): Observable<PaginatedList<KeyValuePair<string, string>>> {
+    return this.store.pipe(select(themePaginatedVariablesByQuery(query, paginationOptions)));
+  }
+
+  /**
+   * Get all custom properties on a page
+   * @return array<KeyValuePair<string, string>>
+   * ex; [{key: "--color-accent", value: "#b9f500"}, {key: "--color-text", value: "#252525"}, ...]
+   */
+  getCSSVariablesFromStylesheets(document: Document): KeyValuePair<string, string>[] {
+    if (isNotEmpty(document.styleSheets)) {
+      // styleSheets is array-like, so we convert it to an array.
+      // Filter out any stylesheets not on this domain
+      return [...document.styleSheets]
+        .filter(this.isSameDomain)
+        .reduce(
+          (finalArr, sheet) =>
+            finalArr.concat(
+              // cssRules is array-like, so we convert it to an array
+              [...sheet.cssRules].filter(this.isStyleRule).reduce((propValArr, rule: any) => {
+                const props = [...rule.style]
+                  .map((propName) => {
+                      return {
+                        key: propName.trim(),
+                        value: rule.style.getPropertyValue(propName).trim()
+                      } as KeyValuePair<string, string>;
+                    }
+                  )
+                  // Discard any props that don't start with "--". Custom props are required to.
+                  .filter(({ key }: KeyValuePair<string, string>) => key.indexOf('--') === 0);
+
+                return [...propValArr, ...props];
+              }, [])
+            ),
+          []
+        );
+    } else {
+      return [];
+    }
+  }
+}
+
+const themeVariablesSelector = (state: AppState) => state.cssVariables;
+
+const themeVariableByNameSelector = (name: string): MemoizedSelector<AppState, string> => {
+  return keySelector<string>(name, themeVariablesSelector);
+};
+
+// Split this up into two memoized selectors so the query search gets cached separately from the pagination,
+// since the entire list has to be retrieved every time anyway
+const themePaginatedVariablesByQuery = (query: string, pagination: PaginationComponentOptions): MemoizedSelector<AppState, PaginatedList<KeyValuePair<string, string>>> => {
+  return createSelector(themeVariablesByQuery(query), (pairs) => {
+    if (hasValue(pairs)) {
+      const { currentPage, pageSize } = pagination;
+      const startIndex = (currentPage - 1) * pageSize;
+      const endIndex = startIndex + pageSize;
+      const pairsPage = pairs.slice(startIndex, endIndex);
+      const totalPages = Math.ceil(pairs.length / pageSize);
+      const pageInfo = new PageInfo({ currentPage, elementsPerPage: pageSize, totalElements: pairs.length, totalPages });
+      return buildPaginatedList(pageInfo, pairsPage);
+    } else {
+      return undefined;
+    }
+  });
+};
+
+const themeVariablesByQuery = (query: string): MemoizedSelector<AppState, KeyValuePair<string, string>[]> => {
+  return createSelector(themeVariablesSelector, (state) => {
+    if (hasValue(state)) {
+      return Object.keys(state)
+        .filter((key: string) => key.includes(query))
+        .map((key: string) => {
+          return { key, value: state[key] };
+        });
+    } else {
+      return undefined;
+    }
+  });
+};
--- a/src/app/shared/sass-helper/sass-helper.reducer.ts
+++ b/src/app/shared/sass-helper/sass-helper.reducer.ts
@@ -1,20 +0,0 @@
-import { CSSVariableAction, CSSVariableActionTypes } from './sass-helper.actions';
-
-export interface CSSVariablesState {
-  [name: string]: string;
-}
-
-const initialState: CSSVariablesState = Object.create({});
-
-export function cssVariablesReducer(state = initialState, action: CSSVariableAction): CSSVariablesState {
-  switch (action.type) {
-    case CSSVariableActionTypes.ADD: {
-      const variable = action.payload;
-      const t =  Object.assign({}, state, { [variable.name]: variable.value });
-      return t;
-    }
-    default: {
-      return state;
-    }
-  }
-}
--- a/src/app/shared/sass-helper/sass-helper.service.ts
+++ b/src/app/shared/sass-helper/sass-helper.service.ts
@@ -1,30 +0,0 @@
-import { Injectable } from '@angular/core';
-import { AppState, keySelector } from '../../app.reducer';
-import { MemoizedSelector, select, Store } from '@ngrx/store';
-import { AddCSSVariableAction } from './sass-helper.actions';
-
-@Injectable()
-export class CSSVariableService {
-  constructor(
-    protected store: Store<AppState>) {
-  }
-
-  addCSSVariable(name: string, value: string) {
-    this.store.dispatch(new AddCSSVariableAction(name, value));
-  }
-
-  getVariable(name: string) {
-    return this.store.pipe(select(themeVariableByNameSelector(name)));
-  }
-
-  getAllVariables() {
-    return this.store.pipe(select(themeVariablesSelector));
-  }
-
-}
-
-const themeVariablesSelector = (state: AppState) => state.cssVariables;
-
-const themeVariableByNameSelector = (name: string): MemoizedSelector<AppState, string> => {
-  return keySelector<string>(name, themeVariablesSelector);
-};
--- a/src/app/shared/search/search-filters/search-filter/search-facet-filter-wrapper/search-facet-filter-wrapper.component.ts
+++ b/src/app/shared/search/search-filters/search-filter/search-facet-filter-wrapper/search-facet-filter-wrapper.component.ts
@@ -2,9 +2,14 @@ import { Component, Injector, Input, OnInit } from '@angular/core';
 import { renderFilterType } from '../search-filter-type-decorator';
 import { FilterType } from '../../../models/filter-type.model';
 import { SearchFilterConfig } from '../../../models/search-filter-config.model';
-import { FILTER_CONFIG, IN_PLACE_SEARCH } from '../../../../../core/shared/search/search-filter.service';
+import {
+  FILTER_CONFIG,
+  IN_PLACE_SEARCH,
+  REFRESH_FILTER
+} from '../../../../../core/shared/search/search-filter.service';
 import { GenericConstructor } from '../../../../../core/shared/generic-constructor';
 import { SearchFacetFilterComponent } from '../search-facet-filter/search-facet-filter.component';
+import { BehaviorSubject } from 'rxjs';

@Component({
  selector: 'ds-search-facet-filter-wrapper',
@@ -25,6 +30,11 @@ export class SearchFacetFilterWrapperComponent implements OnInit {
   */
  @Input() inPlaceSearch;

+  /**
+   * Emits when the search filters values may be stale, and so they must be refreshed.
+   */
+  @Input() refreshFilters: BehaviorSubject<boolean>;
+
  /**
   * The constructor of the search facet filter that should be rendered, based on the filter config's type
   */
@@ -45,7 +55,8 @@ export class SearchFacetFilterWrapperComponent implements OnInit {
    this.objectInjector = Injector.create({
      providers: [
        { provide: FILTER_CONFIG, useFactory: () => (this.filterConfig), deps: [] },
-        { provide: IN_PLACE_SEARCH, useFactory: () => (this.inPlaceSearch), deps: [] }
+        { provide: IN_PLACE_SEARCH, useFactory: () => (this.inPlaceSearch), deps: [] },
+        { provide: REFRESH_FILTER, useFactory: () => (this.refreshFilters), deps: [] }
      ],
      parent: this.injector
    });
--- a/src/app/shared/search/search-filters/search-filter/search-facet-filter/search-facet-filter.component.spec.ts
+++ b/src/app/shared/search/search-filters/search-filter/search-facet-filter/search-facet-filter.component.spec.ts
@@ -5,13 +5,14 @@ import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import {
  FILTER_CONFIG,
  IN_PLACE_SEARCH,
+  REFRESH_FILTER,
  SearchFilterService
 } from '../../../../../core/shared/search/search-filter.service';
 import { SearchFilterConfig } from '../../../models/search-filter-config.model';
 import { FilterType } from '../../../models/filter-type.model';
 import { FacetValue } from '../../../models/facet-value.model';
 import { FormsModule } from '@angular/forms';
-import { of as observableOf } from 'rxjs';
+import { BehaviorSubject, of as observableOf } from 'rxjs';
 import { SearchService } from '../../../../../core/shared/search/search.service';
 import { SearchServiceStub } from '../../../../testing/search-service.stub';
 import { buildPaginatedList } from '../../../../../core/data/paginated-list.model';
@@ -97,6 +98,7 @@ describe('SearchFacetFilterComponent', () => {
        { provide: RemoteDataBuildService, useValue: { aggregate: () => observableOf({}) } },
        { provide: SEARCH_CONFIG_SERVICE, useValue: new SearchConfigurationServiceStub() },
        { provide: IN_PLACE_SEARCH, useValue: false },
+        { provide: REFRESH_FILTER, useValue: new BehaviorSubject<boolean>(false) },
        {
          provide: SearchFilterService, useValue: {
            getSelectedValuesForFilter: () => observableOf(selectedValues),
--- a/src/app/shared/search/search-filters/search-filter/search-facet-filter/search-facet-filter.component.ts
+++ b/src/app/shared/search/search-filters/search-filter/search-facet-filter/search-facet-filter.component.ts
@@ -1,3 +1,7 @@
+import { animate, state, style, transition, trigger } from '@angular/animations';
+import { Component, Inject, OnDestroy, OnInit } from '@angular/core';
+import { Router } from '@angular/router';
+
 import {
  BehaviorSubject,
  combineLatest as observableCombineLatest,
@@ -6,10 +10,8 @@ import {
  Subject,
  Subscription
 } from 'rxjs';
-import { distinctUntilChanged, map, switchMap, take, tap } from 'rxjs/operators';
-import { animate, state, style, transition, trigger } from '@angular/animations';
-import { Component, Inject, OnDestroy, OnInit } from '@angular/core';
-import { Router } from '@angular/router';
+import { debounceTime, distinctUntilChanged, filter, map, mergeMap, switchMap, take, tap } from 'rxjs/operators';
+
 import { RemoteDataBuildService } from '../../../../../core/cache/builders/remote-data-build.service';
 import { PaginatedList } from '../../../../../core/data/paginated-list.model';
 import { RemoteData } from '../../../../../core/data/remote-data';
@@ -21,6 +23,7 @@ import { SearchService } from '../../../../../core/shared/search/search.service'
 import {
  FILTER_CONFIG,
  IN_PLACE_SEARCH,
+  REFRESH_FILTER,
  SearchFilterService
 } from '../../../../../core/shared/search/search-filter.service';
 import { SearchConfigurationService } from '../../../../../core/shared/search/search-configuration.service';
@@ -31,6 +34,7 @@ import { SEARCH_CONFIG_SERVICE } from '../../../../../my-dspace-page/my-dspace-p
 import { currentPath } from '../../../../utils/route.utils';
 import { getFacetValueForType, stripOperatorFromFilterValue } from '../../../search.utils';
 import { createPendingRemoteDataObject } from '../../../../remote-data.utils';
+import { FacetValues } from '../../../models/facet-values.model';

@Component({
  selector: 'ds-search-facet-filter',
@@ -75,6 +79,7 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
   * Emits the active values for this filter
   */
  selectedValues$: Observable<FacetValue[]>;
+
  protected collapseNextUpdate = true;

  /**
@@ -98,7 +103,8 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
              protected router: Router,
              @Inject(SEARCH_CONFIG_SERVICE) public searchConfigService: SearchConfigurationService,
              @Inject(IN_PLACE_SEARCH) public inPlaceSearch: boolean,
-              @Inject(FILTER_CONFIG) public filterConfig: SearchFilterConfig) {
+              @Inject(FILTER_CONFIG) public filterConfig: SearchFilterConfig,
+              @Inject(REFRESH_FILTER) public refreshFilters: BehaviorSubject<boolean>) {
  }

  /**
@@ -110,66 +116,16 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
    this.currentPage = this.getCurrentPage().pipe(distinctUntilChanged());

    this.searchOptions$ = this.searchConfigService.searchOptions;
-    this.subs.push(this.searchOptions$.subscribe(() => this.updateFilterValueList()));
-    const facetValues$ = observableCombineLatest(this.searchOptions$, this.currentPage).pipe(
-      map(([options, page]) => {
-        return { options, page };
-      }),
-      switchMap(({ options, page }) => {
-        return this.searchService.getFacetValuesFor(this.filterConfig, page, options)
-          .pipe(
-            getFirstSucceededRemoteData(),
-            map((results) => {
-                return {
-                  values: observableOf(results),
-                  page: page
-                };
-              }
-            )
+    this.subs.push(
+      this.searchOptions$.subscribe(() => this.updateFilterValueList()),
+      this.refreshFilters.asObservable().pipe(
+        filter((toRefresh: boolean) => toRefresh),
+        // NOTE This is a workaround, otherwise retrieving filter values returns tha old cached response
+        debounceTime((100)),
+        mergeMap(() => this.retrieveFilterValues(false))
+      ).subscribe()
    );
-      })
-    );
-
-    let filterValues = [];
-    this.subs.push(facetValues$.subscribe((facetOutcome) => {
-      const newValues$ = facetOutcome.values;
-
-      if (this.collapseNextUpdate) {
-        this.showFirstPageOnly();
-        facetOutcome.page = 1;
-        this.collapseNextUpdate = false;
-      }
-      if (facetOutcome.page === 1) {
-        filterValues = [];
-      }
-
-      filterValues = [...filterValues, newValues$];
-
-      this.subs.push(this.rdbs.aggregate(filterValues).pipe(
-        tap((rd: RemoteData<PaginatedList<FacetValue>[]>) => {
-          this.selectedValues$ = this.filterService.getSelectedValuesForFilter(this.filterConfig).pipe(
-            map((selectedValues) => {
-              return selectedValues.map((value: string) => {
-                const fValue = [].concat(...rd.payload.map((page) => page.page)).find((facetValue: FacetValue) => this.getFacetValue(facetValue) === value);
-                if (hasValue(fValue)) {
-                  return fValue;
-                }
-                const filterValue = stripOperatorFromFilterValue(value);
-                return Object.assign(new FacetValue(), { label: filterValue, value: filterValue });
-              });
-            })
-          );
-        })
-      ).subscribe((rd: RemoteData<PaginatedList<FacetValue>[]>) => {
-        this.animationState = 'ready';
-        this.filterValues$.next(rd);
-
-      }));
-      this.subs.push(newValues$.pipe(take(1)).subscribe((rd) => {
-        this.isLastPage$.next(hasNoValue(rd.payload.next));
-      }));
-    }));
-
+    this.retrieveFilterValues().subscribe();
  }

  /**
@@ -324,6 +280,67 @@ export class SearchFacetFilterComponent implements OnInit, OnDestroy {
    return getFacetValueForType(facet, this.filterConfig);
  }

+  protected retrieveFilterValues(useCachedVersionIfAvailable = true): Observable<RemoteData<PaginatedList<FacetValue>[]>> {
+    const facetValues$ = observableCombineLatest([this.searchOptions$, this.currentPage]).pipe(
+      map(([options, page]) => {
+        return { options, page };
+      }),
+      switchMap(({ options, page }) => {
+        return this.searchService.getFacetValuesFor(this.filterConfig, page, options, null, useCachedVersionIfAvailable)
+          .pipe(
+            getFirstSucceededRemoteData(),
+            tap((rd: RemoteData<FacetValues>) => {
+              this.isLastPage$.next(hasNoValue(rd?.payload?.next));
+            }),
+            map((rd: RemoteData<FacetValues>) => ({
+                values: observableOf(rd),
+                page: page
+              })
+            )
+          );
+      })
+    );
+
+    let filterValues = [];
+    return facetValues$.pipe(
+      mergeMap((facetOutcome) => {
+        const newValues$ = facetOutcome.values;
+
+        if (this.collapseNextUpdate) {
+          this.showFirstPageOnly();
+          facetOutcome.page = 1;
+          this.collapseNextUpdate = false;
+        }
+        if (facetOutcome.page === 1) {
+          filterValues = [];
+        }
+
+        filterValues = [...filterValues, newValues$];
+
+        return this.rdbs.aggregate(filterValues);
+      }),
+      tap((rd: RemoteData<PaginatedList<FacetValue>[]>) => {
+        this.selectedValues$ = this.filterService.getSelectedValuesForFilter(this.filterConfig).pipe(
+          map((selectedValues) => {
+            return selectedValues.map((value: string) => {
+              const fValue = [].concat(...rd.payload.map((page) => page.page))
+                               .find((facetValue: FacetValue) => this.getFacetValue(facetValue) === value);
+              if (hasValue(fValue)) {
+                return fValue;
+              }
+              const filterValue = stripOperatorFromFilterValue(value);
+              return Object.assign(new FacetValue(), { label: filterValue, value: filterValue });
+            });
+          })
+        );
+      }),
+      tap((rd: RemoteData<PaginatedList<FacetValue>[]>) => {
+        this.animationState = 'ready';
+        this.filterValues$.next(rd);
+      })
+    );
+  }
+
  /**
   * Transforms the facet value string, so if the query matches part of the value, it's emphasized in the value
   * @param {FacetValue} facet The value of the facet as returned by the server
--- a/src/app/shared/search/search-filters/search-filter/search-filter.component.html
+++ b/src/app/shared/search/search-filters/search-filter/search-filter.component.html
@@ -19,7 +19,8 @@
       class="search-filter-wrapper" [ngClass]="{ 'closed' : closed, 'notab': notab }">
    <ds-search-facet-filter-wrapper
      [filterConfig]="filter"
-      [inPlaceSearch]="inPlaceSearch">
+      [inPlaceSearch]="inPlaceSearch"
+      [refreshFilters]="refreshFilters" >
    </ds-search-facet-filter-wrapper>
  </div>
 </div>
--- a/src/app/shared/search/search-filters/search-filter/search-filter.component.ts
+++ b/src/app/shared/search/search-filters/search-filter/search-filter.component.ts
@@ -1,6 +1,6 @@
 import { Component, Inject, Input, OnInit } from '@angular/core';

-import { Observable, of as observableOf } from 'rxjs';
+import { BehaviorSubject, Observable, of as observableOf } from 'rxjs';
 import { filter, map, startWith, switchMap, take } from 'rxjs/operators';

 import { SearchFilterConfig } from '../../models/search-filter-config.model';
@@ -33,6 +33,11 @@ export class SearchFilterComponent implements OnInit {
   */
  @Input() inPlaceSearch;

+  /**
+   * Emits when the search filters values may be stale, and so they must be refreshed.
+   */
+  @Input() refreshFilters: BehaviorSubject<boolean>;
+
  /**
   * True when the filter is 100% collapsed in the UI
   */
--- a/src/app/shared/search/search-filters/search-filter/search-hierarchy-filter/search-hierarchy-filter.component.spec.ts
+++ b/src/app/shared/search/search-filters/search-filter/search-hierarchy-filter/search-hierarchy-filter.component.spec.ts
@@ -1,17 +1,18 @@
-import { TestBed, ComponentFixture } from '@angular/core/testing';
+import { ComponentFixture, TestBed } from '@angular/core/testing';
 import { SearchHierarchyFilterComponent } from './search-hierarchy-filter.component';
 import { SearchService } from '../../../../../core/shared/search/search.service';
 import {
-  SearchFilterService,
  FILTER_CONFIG,
-  IN_PLACE_SEARCH
+  IN_PLACE_SEARCH,
+  REFRESH_FILTER,
+  SearchFilterService
 } from '../../../../../core/shared/search/search-filter.service';
 import { RemoteDataBuildService } from '../../../../../core/cache/builders/remote-data-build.service';
 import { SearchFiltersComponent } from '../../search-filters.component';
 import { Router } from '@angular/router';
 import { RouterStub } from '../../../../testing/router.stub';
 import { SearchServiceStub } from '../../../../testing/search-service.stub';
-import { of as observableOf, Observable } from 'rxjs';
+import { BehaviorSubject, Observable, of as observableOf } from 'rxjs';
 import { SEARCH_CONFIG_SERVICE } from '../../../../../my-dspace-page/my-dspace-page.component';
 import { SearchConfigurationServiceStub } from '../../../../testing/search-configuration-service.stub';
 import { SearchFilterConfig } from '../../../models/search-filter-config.model';
@@ -21,7 +22,7 @@ import {
 } from '../../../../input-suggestions/filter-suggestions/filter-input-suggestions.component';
 import { FormsModule } from '@angular/forms';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';
-import { NO_ERRORS_SCHEMA, ChangeDetectionStrategy } from '@angular/core';
+import { ChangeDetectionStrategy, NO_ERRORS_SCHEMA } from '@angular/core';
 import { createSuccessfulRemoteDataObject$ } from '../../../../remote-data.utils';
 import { FacetValue } from '../../../models/facet-value.model';
 import { FilterType } from '../../../models/filter-type.model';
@@ -112,7 +113,8 @@ describe('SearchHierarchyFilterComponent', () => {
        { provide: Router, useValue: new RouterStub() },
        { provide: SEARCH_CONFIG_SERVICE, useValue: new SearchConfigurationServiceStub() },
        { provide: IN_PLACE_SEARCH, useValue: false },
-        { provide: FILTER_CONFIG, useValue: new SearchFilterConfig() }
+        { provide: FILTER_CONFIG, useValue: new SearchFilterConfig() },
+        { provide: REFRESH_FILTER, useValue: new BehaviorSubject<boolean>(false) }
      ],
      schemas: [NO_ERRORS_SCHEMA]
    }).overrideComponent(SearchHierarchyFilterComponent, {
@@ -140,7 +142,7 @@ describe('SearchHierarchyFilterComponent', () => {
  });

  it('should navigate to the correct filter with the query operator', () => {
-    expect((comp as any).searchService.getFacetValuesFor).toHaveBeenCalledWith(comp.filterConfig, 0, {});
+    expect((comp as any).searchService.getFacetValuesFor).toHaveBeenCalledWith(comp.filterConfig, 0, {}, null, true);

    const searchQuery = 'MARVEL';
    comp.onSubmit(searchQuery);
--- a/src/app/shared/search/search-filters/search-filter/search-range-filter/search-range-filter.component.spec.ts
+++ b/src/app/shared/search/search-filters/search-filter/search-range-filter/search-range-filter.component.spec.ts
@@ -5,13 +5,14 @@ import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import {
  FILTER_CONFIG,
  IN_PLACE_SEARCH,
+  REFRESH_FILTER,
  SearchFilterService
 } from '../../../../../core/shared/search/search-filter.service';
 import { SearchFilterConfig } from '../../../models/search-filter-config.model';
 import { FilterType } from '../../../models/filter-type.model';
 import { FacetValue } from '../../../models/facet-value.model';
 import { FormsModule } from '@angular/forms';
-import { of as observableOf } from 'rxjs';
+import { BehaviorSubject, of as observableOf } from 'rxjs';
 import { SearchService } from '../../../../../core/shared/search/search.service';
 import { SearchServiceStub } from '../../../../testing/search-service.stub';
 import { buildPaginatedList } from '../../../../../core/data/paginated-list.model';
@@ -104,6 +105,7 @@ describe('SearchRangeFilterComponent', () => {
        { provide: RouteService, useValue: { getQueryParameterValue: () => observableOf({}) } },
        { provide: SEARCH_CONFIG_SERVICE, useValue: new SearchConfigurationServiceStub() },
        { provide: IN_PLACE_SEARCH, useValue: false },
+        { provide: REFRESH_FILTER, useValue: new BehaviorSubject<boolean>(false) },
        {
          provide: SearchFilterService, useValue: {
            getSelectedValuesForFilter: () => selectedValues,
--- a/src/app/shared/search/search-filters/search-filter/search-range-filter/search-range-filter.component.ts
+++ b/src/app/shared/search/search-filters/search-filter/search-range-filter/search-range-filter.component.ts
@@ -1,4 +1,4 @@
-import { combineLatest as observableCombineLatest, Subscription } from 'rxjs';
+import { BehaviorSubject, combineLatest as observableCombineLatest, Subscription } from 'rxjs';
 import { map, startWith } from 'rxjs/operators';
 import { isPlatformBrowser } from '@angular/common';
 import { Component, Inject, OnDestroy, OnInit, PLATFORM_ID } from '@angular/core';
@@ -10,6 +10,7 @@ import { SearchFilterConfig } from '../../../models/search-filter-config.model';
 import {
  FILTER_CONFIG,
  IN_PLACE_SEARCH,
+  REFRESH_FILTER,
  SearchFilterService
 } from '../../../../../core/shared/search/search-filter.service';
 import { SearchService } from '../../../../../core/shared/search/search.service';
@@ -86,8 +87,9 @@ export class SearchRangeFilterComponent extends SearchFacetFilterComponent imple
              @Inject(IN_PLACE_SEARCH) public inPlaceSearch: boolean,
              @Inject(FILTER_CONFIG) public filterConfig: SearchFilterConfig,
              @Inject(PLATFORM_ID) private platformId: any,
+              @Inject(REFRESH_FILTER) public refreshFilters: BehaviorSubject<boolean>,
              private route: RouteService) {
-    super(searchService, filterService, rdbs, router, searchConfigService, inPlaceSearch, filterConfig);
+    super(searchService, filterService, rdbs, router, searchConfigService, inPlaceSearch, filterConfig, refreshFilters);

  }

--- a/src/app/shared/search/search-filters/search-filters.component.html
+++ b/src/app/shared/search/search-filters/search-filters.component.html
@@ -1,7 +1,7 @@
 <h3>{{"search.filters.head" | translate}}</h3>
 <div *ngIf="(filters | async)?.hasSucceeded">
    <div *ngFor="let filter of (filters | async)?.payload; trackBy: trackUpdate">
-        <ds-search-filter [filter]="filter" [inPlaceSearch]="inPlaceSearch"></ds-search-filter>
+        <ds-search-filter [filter]="filter" [inPlaceSearch]="inPlaceSearch" [refreshFilters]="refreshFilters"></ds-search-filter>
    </div>
 </div>
 <a class="btn btn-primary" [routerLink]="[searchLink]" [queryParams]="clearParams | async" queryParamsHandling="merge" role="button"><i class="fas fa-undo"></i> {{"search.filters.reset" | translate}}</a>
--- a/src/app/shared/search/search-filters/search-filters.component.spec.ts
+++ b/src/app/shared/search/search-filters/search-filters.component.spec.ts
@@ -7,7 +7,6 @@ import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import { SearchFilterService } from '../../../core/shared/search/search-filter.service';
 import { SearchFiltersComponent } from './search-filters.component';
 import { SearchService } from '../../../core/shared/search/search.service';
-import { of as observableOf, Subject } from 'rxjs';
 import { SEARCH_CONFIG_SERVICE } from '../../../my-dspace-page/my-dspace-page.component';
 import { SearchConfigurationServiceStub } from '../../testing/search-configuration-service.stub';

@@ -64,26 +63,4 @@ describe('SearchFiltersComponent', () => {
    });
  });

-  describe('when refreshSearch observable is present and emit events', () => {
-
-    let refreshFiltersEmitter: Subject<any>;
-
-    beforeEach(() => {
-      spyOn(comp, 'initFilters').and.callFake(() => { /****/});
-
-      refreshFiltersEmitter = new Subject();
-      comp.refreshFilters = refreshFiltersEmitter.asObservable();
-      comp.ngOnInit();
-    });
-
-    it('should reinitialize search filters', () => {
-
-      expect(comp.initFilters).toHaveBeenCalledTimes(1);
-
-      refreshFiltersEmitter.next(null);
-
-      expect(comp.initFilters).toHaveBeenCalledTimes(2);
-    });
-  });
-
 });
--- a/Show More
+++ b/Show More