diff --git a/src/app/core/auth/auth.actions.ts b/src/app/core/auth/auth.actions.ts
index 60440d371e..6bc4565682 100644
--- a/src/app/core/auth/auth.actions.ts
+++ b/src/app/core/auth/auth.actions.ts
@@ -17,6 +17,7 @@ export const AuthActionTypes = {
   AUTHENTICATED_SUCCESS: type('dspace/auth/AUTHENTICATED_SUCCESS'),
   CHECK_AUTHENTICATION_TOKEN: type('dspace/auth/CHECK_AUTHENTICATION_TOKEN'),
   CHECK_AUTHENTICATION_TOKEN_COOKIE: type('dspace/auth/CHECK_AUTHENTICATION_TOKEN_COOKIE'),
+  SET_AUTH_COOKIE_STATUS: type('dspace/auth/SET_AUTH_COOKIE_STATUS'),
   RETRIEVE_AUTH_METHODS: type('dspace/auth/RETRIEVE_AUTH_METHODS'),
   RETRIEVE_AUTH_METHODS_SUCCESS: type('dspace/auth/RETRIEVE_AUTH_METHODS_SUCCESS'),
   RETRIEVE_AUTH_METHODS_ERROR: type('dspace/auth/RETRIEVE_AUTH_METHODS_ERROR'),
@@ -150,6 +151,19 @@ export class CheckAuthenticationTokenCookieAction implements Action {
   public type: string = AuthActionTypes.CHECK_AUTHENTICATION_TOKEN_COOKIE;
 }
 
+/**
+ * Sets the authentication cookie status to flag an external authentication response.
+ */
+export class SetAuthCookieStatus implements Action {
+  public type: string = AuthActionTypes.SET_AUTH_COOKIE_STATUS;
+
+  payload = false;
+
+  constructor(exists: boolean) {
+    this.payload = exists;
+  }
+}
+
 /**
  * Sign out.
  * @class LogOutAction
@@ -425,6 +439,7 @@ export type AuthActions
   | AuthenticationSuccessAction
   | CheckAuthenticationTokenAction
   | CheckAuthenticationTokenCookieAction
+  | SetAuthCookieStatus
   | RedirectWhenAuthenticationIsRequiredAction
   | RedirectWhenTokenExpiredAction
   | AddAuthenticationMessageAction
diff --git a/src/app/core/auth/auth.effects.spec.ts b/src/app/core/auth/auth.effects.spec.ts
index f09db04d99..2e6ba917aa 100644
--- a/src/app/core/auth/auth.effects.spec.ts
+++ b/src/app/core/auth/auth.effects.spec.ts
@@ -214,12 +214,15 @@ describe('AuthEffects', () => {
               authenticated: true
             })
         );
+        spyOn((authEffects as any).authService, 'setExternalAuthStatus');
         actions = hot('--a-', { a: { type: AuthActionTypes.CHECK_AUTHENTICATION_TOKEN_COOKIE } });
 
         const expected = cold('--b-', { b: new RetrieveTokenAction() });
 
         expect(authEffects.checkTokenCookie$).toBeObservable(expected);
         authEffects.checkTokenCookie$.subscribe(() => {
+          expect(authServiceStub.setExternalAuthStatus).toHaveBeenCalled();
+          expect(authServiceStub.isExternalAuthentication).toBeTrue();
           expect((authEffects as any).authorizationsService.invalidateAuthorizationsRequestCache).toHaveBeenCalled();
         });
       });
diff --git a/src/app/core/auth/auth.effects.ts b/src/app/core/auth/auth.effects.ts
index 22d1bf35e7..281355b769 100644
--- a/src/app/core/auth/auth.effects.ts
+++ b/src/app/core/auth/auth.effects.ts
@@ -153,6 +153,7 @@ export class AuthEffects {
       return this.authService.checkAuthenticationCookie().pipe(
         map((response: AuthStatus) => {
           if (response.authenticated) {
+            this.authService.setExternalAuthStatus(true);
             this.authorizationsService.invalidateAuthorizationsRequestCache();
             return new RetrieveTokenAction();
           } else {
diff --git a/src/app/core/auth/auth.reducer.spec.ts b/src/app/core/auth/auth.reducer.spec.ts
index 8ebc9f6cb0..c0619adf79 100644
--- a/src/app/core/auth/auth.reducer.spec.ts
+++ b/src/app/core/auth/auth.reducer.spec.ts
@@ -8,6 +8,7 @@ import {
   AuthenticationErrorAction,
   AuthenticationSuccessAction,
   CheckAuthenticationTokenAction,
+  SetAuthCookieStatus,
   CheckAuthenticationTokenCookieAction,
   LogOutAction,
   LogOutErrorAction,
@@ -219,6 +220,28 @@ describe('authReducer', () => {
     expect(newState).toEqual(state);
   });
 
+  it('should set the authentication cookie status in response to a SET_AUTH_COOKIE_STATUS action', () => {
+    initialState = {
+      authenticated: true,
+      loaded: false,
+      blocking: false,
+      loading: true,
+      externalAuth: false,
+      idle: false
+    };
+    const action = new SetAuthCookieStatus(true);
+    const newState = authReducer(initialState, action);
+    state = {
+      authenticated: true,
+      loaded: false,
+      blocking: false,
+      loading: true,
+      externalAuth: true,
+      idle: false
+    };
+    expect(newState).toEqual(state);
+  });
+
   it('should properly set the state, in response to a LOG_OUT action', () => {
     initialState = {
       authenticated: true,
diff --git a/src/app/core/auth/auth.reducer.ts b/src/app/core/auth/auth.reducer.ts
index acdb8ef812..ba9c41326a 100644
--- a/src/app/core/auth/auth.reducer.ts
+++ b/src/app/core/auth/auth.reducer.ts
@@ -10,7 +10,7 @@ import {
   RedirectWhenTokenExpiredAction,
   RefreshTokenSuccessAction,
   RetrieveAuthenticatedEpersonSuccessAction,
-  RetrieveAuthMethodsSuccessAction,
+  RetrieveAuthMethodsSuccessAction, SetAuthCookieStatus,
   SetRedirectUrlAction
 } from './auth.actions';
 // import models
@@ -59,6 +59,8 @@ export interface AuthState {
   // all authentication Methods enabled at the backend
   authMethods?: AuthMethod[];
 
+  externalAuth?: boolean,
+
   // true when the current user is idle
   idle: boolean;
 
@@ -73,6 +75,7 @@ const initialState: AuthState = {
   blocking: true,
   loading: false,
   authMethods: [],
+  externalAuth: false,
   idle: false
 };
 
@@ -104,6 +107,11 @@ export function authReducer(state: any = initialState, action: AuthActions): Aut
         loading: true,
       });
 
+    case AuthActionTypes.SET_AUTH_COOKIE_STATUS:
+      return Object.assign({}, state, {
+        externalAuth: (action as SetAuthCookieStatus).payload
+      });
+
     case AuthActionTypes.AUTHENTICATED_ERROR:
     case AuthActionTypes.RETRIEVE_AUTHENTICATED_EPERSON_ERROR:
       return Object.assign({}, state, {
diff --git a/src/app/core/auth/auth.service.ts b/src/app/core/auth/auth.service.ts
index 3034c00197..6604936cde 100644
--- a/src/app/core/auth/auth.service.ts
+++ b/src/app/core/auth/auth.service.ts
@@ -25,7 +25,7 @@ import {
 import { CookieService } from '../services/cookie.service';
 import {
   getAuthenticatedUserId,
-  getAuthenticationToken,
+  getAuthenticationToken, getExternalAuthCookieStatus,
   getRedirectUrl,
   isAuthenticated,
   isAuthenticatedLoaded,
@@ -36,7 +36,7 @@ import { AppState } from '../../app.reducer';
 import {
   CheckAuthenticationTokenAction,
   RefreshTokenAction,
-  ResetAuthenticationMessagesAction,
+  ResetAuthenticationMessagesAction, SetAuthCookieStatus,
   SetRedirectUrlAction,
   SetUserAsIdleAction,
   UnsetUserAsIdleAction
@@ -156,6 +156,24 @@ export class AuthService {
     return this.store.pipe(select(isAuthenticatedLoaded));
   }
 
+  /**
+   * Used to set the external authentication status when authenticating via an
+   * external authentication system (e.g. Shibboleth).
+   * @param external
+   */
+  public setExternalAuthStatus(external: boolean) {
+    this.store.dispatch(new SetAuthCookieStatus(external));
+  }
+
+  /**
+   * Returns true if an external authentication system (e.g. Shibboleth) is being used
+   * for authentication. Returns false otherwise.
+   */
+  public isExternalAuthentication(): Observable<boolean> {
+    return this.store.pipe(
+      select(getExternalAuthCookieStatus));
+  }
+
   /**
    * Returns the href link to authenticated user
    * @returns {string}
diff --git a/src/app/core/auth/selectors.ts b/src/app/core/auth/selectors.ts
index ce8d38d6ba..aba739edf6 100644
--- a/src/app/core/auth/selectors.ts
+++ b/src/app/core/auth/selectors.ts
@@ -116,6 +116,8 @@ const _getRedirectUrl = (state: AuthState) => state.redirectUrl;
 
 const _getAuthenticationMethods = (state: AuthState) => state.authMethods;
 
+const _getExternalAuthCookieStatus = (state: AuthState) => state.externalAuth;
+
 /**
  * Returns true if the user is idle.
  * @function _isIdle
@@ -178,6 +180,16 @@ export const isAuthenticated = createSelector(getAuthState, _isAuthenticated);
  */
 export const isAuthenticatedLoaded = createSelector(getAuthState, _isAuthenticatedLoaded);
 
+/**
+ * Returns the authentication cookie status. Expect to be true when external authentication
+ * is used.
+ * @function getExternalAuthCookieStatus
+ * @param {AuthState} state
+ * @param {any} props
+ * @return {boolean}
+ */
+export const getExternalAuthCookieStatus = createSelector(getAuthState, _getExternalAuthCookieStatus);
+
 /**
  * Returns true if the authentication request is loading.
  * @function isAuthenticationLoading
diff --git a/src/app/core/core.module.ts b/src/app/core/core.module.ts
index 0237a9eb53..319b42d58b 100644
--- a/src/app/core/core.module.ts
+++ b/src/app/core/core.module.ts
@@ -176,6 +176,7 @@ import { VocabularyEntryDetailsDataService } from './submission/vocabularies/voc
 import { IdentifierData } from '../shared/object-list/identifier-data/identifier-data.model';
 import { Subscription } from '../shared/subscriptions/models/subscription.model';
 import { SupervisionOrderDataService } from './supervision-order/supervision-order-data.service';
+import { ItemRequest } from './shared/item-request.model';
 
 /**
  * When not in production, endpoint responses can be mocked for testing purposes
@@ -369,6 +370,7 @@ export const models =
     AccessStatusObject,
     IdentifierData,
     Subscription,
+    ItemRequest,
   ];
 
 @NgModule({
diff --git a/src/app/footer/themed-footer.component.ts b/src/app/footer/themed-footer.component.ts
index c52a0af29f..e8f64f3434 100644
--- a/src/app/footer/themed-footer.component.ts
+++ b/src/app/footer/themed-footer.component.ts
@@ -7,7 +7,7 @@ import { FooterComponent } from './footer.component';
  */
 @Component({
   selector: 'ds-themed-footer',
-  styleUrls: ['footer.component.scss'],
+  styleUrls: [],
   templateUrl: '../shared/theme-support/themed.component.html',
 })
 export class ThemedFooterComponent extends ThemedComponent<FooterComponent> {
@@ -20,6 +20,6 @@ export class ThemedFooterComponent extends ThemedComponent<FooterComponent> {
   }
 
   protected importUnthemedComponent(): Promise<any> {
-    return import(`./footer.component`);
+    return import('./footer.component');
   }
 }
diff --git a/src/app/header-nav-wrapper/themed-header-navbar-wrapper.component.ts b/src/app/header-nav-wrapper/themed-header-navbar-wrapper.component.ts
index 7f9c181fe2..02d09c44ef 100644
--- a/src/app/header-nav-wrapper/themed-header-navbar-wrapper.component.ts
+++ b/src/app/header-nav-wrapper/themed-header-navbar-wrapper.component.ts
@@ -3,11 +3,11 @@ import { ThemedComponent } from '../shared/theme-support/themed.component';
 import { HeaderNavbarWrapperComponent } from './header-navbar-wrapper.component';
 
 /**
- * Themed wrapper for BreadcrumbsComponent
+ * Themed wrapper for {@link HeaderNavbarWrapperComponent}
  */
 @Component({
   selector: 'ds-themed-header-navbar-wrapper',
-  styleUrls: ['./themed-header-navbar-wrapper.component.scss'],
+  styleUrls: [],
   templateUrl: '../shared/theme-support/themed.component.html',
 })
 export class ThemedHeaderNavbarWrapperComponent extends ThemedComponent<HeaderNavbarWrapperComponent> {
@@ -20,6 +20,6 @@ export class ThemedHeaderNavbarWrapperComponent extends ThemedComponent<HeaderNa
   }
 
   protected importUnthemedComponent(): Promise<any> {
-    return import(`./header-navbar-wrapper.component`);
+    return import('./header-navbar-wrapper.component');
   }
 }
diff --git a/src/app/home-page/themed-home-page.component.ts b/src/app/home-page/themed-home-page.component.ts
index e50f955cb1..c0ef723b38 100644
--- a/src/app/home-page/themed-home-page.component.ts
+++ b/src/app/home-page/themed-home-page.component.ts
@@ -8,8 +8,6 @@ import { Component } from '@angular/core';
   templateUrl: '../shared/theme-support/themed.component.html',
 })
 export class ThemedHomePageComponent extends ThemedComponent<HomePageComponent> {
-  protected inAndOutputNames: (keyof HomePageComponent & keyof this)[];
-
 
   protected getComponentName(): string {
     return 'HomePageComponent';
diff --git a/src/app/item-page/media-viewer/media-viewer-image/media-viewer-image.component.ts b/src/app/item-page/media-viewer/media-viewer-image/media-viewer-image.component.ts
index 4c32ba5376..2ad43f6883 100644
--- a/src/app/item-page/media-viewer/media-viewer-image/media-viewer-image.component.ts
+++ b/src/app/item-page/media-viewer/media-viewer-image/media-viewer-image.component.ts
@@ -1,4 +1,4 @@
-import { Component, Input, OnInit } from '@angular/core';
+import { Component, Input, OnChanges, OnInit } from '@angular/core';
 import { NgxGalleryImage, NgxGalleryOptions } from '@kolkov/ngx-gallery';
 import { MediaViewerItem } from '../../../core/shared/media-viewer-item.model';
 import { NgxGalleryAnimation } from '@kolkov/ngx-gallery';
@@ -13,15 +13,16 @@ import { AuthService } from '../../../core/auth/auth.service';
   templateUrl: './media-viewer-image.component.html',
   styleUrls: ['./media-viewer-image.component.scss'],
 })
-export class MediaViewerImageComponent implements OnInit {
+export class MediaViewerImageComponent implements OnChanges, OnInit {
   @Input() images: MediaViewerItem[];
   @Input() preview?: boolean;
   @Input() image?: string;
 
   thumbnailPlaceholder = './assets/images/replacement_image.svg';
 
-  galleryOptions: NgxGalleryOptions[];
-  galleryImages: NgxGalleryImage[];
+  galleryOptions: NgxGalleryOptions[] = [];
+
+  galleryImages: NgxGalleryImage[] = [];
 
   /**
    * Whether or not the current user is authenticated
@@ -33,11 +34,7 @@ export class MediaViewerImageComponent implements OnInit {
   ) {
   }
 
-  /**
-   * Thi method sets up the gallery settings and data
-   */
-  ngOnInit(): void {
-    this.isAuthenticated$ = this.authService.isAuthenticated();
+  ngOnChanges(): void {
     this.galleryOptions = [
       {
         preview: this.preview !== undefined ? this.preview : true,
@@ -53,7 +50,6 @@ export class MediaViewerImageComponent implements OnInit {
         previewFullscreen: true,
       },
     ];
-
     if (this.image) {
       this.galleryImages = [
         {
@@ -67,6 +63,11 @@ export class MediaViewerImageComponent implements OnInit {
     }
   }
 
+  ngOnInit(): void {
+    this.isAuthenticated$ = this.authService.isAuthenticated();
+    this.ngOnChanges();
+  }
+
   /**
    * This method convert an array of MediaViewerItem into NgxGalleryImage array
    * @param medias input NgxGalleryImage array
diff --git a/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.html b/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.html
index 0cc854b272..73f27e4d81 100644
--- a/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.html
+++ b/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.html
@@ -1,23 +1,22 @@
 <video
   crossorigin="anonymous"
-  #media
-  [src]="filteredMedias[currentIndex].bitstream._links.content.href"
+  [src]="medias[currentIndex].bitstream._links.content.href"
   id="singleVideo"
   [poster]="
-    filteredMedias[currentIndex].thumbnail ||
-    replacements[filteredMedias[currentIndex].format]
+    medias[currentIndex].thumbnail ||
+    replacements[medias[currentIndex].format]
   "
   preload="none"
   controls
 >
-  <ng-container *ngIf="getMediaCap(filteredMedias[currentIndex].bitstream.name) as capInfos">
+  <ng-container *ngIf="getMediaCap(medias[currentIndex].bitstream.name, captions) as capInfos">
     <ng-container *ngFor="let capInfo of capInfos">
       <track [src]="capInfo.src" [label]="capInfo.langLabel" [srclang]="capInfo.srclang" />
     </ng-container>
   </ng-container>
 
 </video>
-<div class="buttons" *ngIf="filteredMedias?.length > 1">
+<div class="buttons" *ngIf="medias?.length > 1">
   <button
     class="btn btn-primary previous"
     [disabled]="currentIndex === 0"
@@ -28,7 +27,7 @@
 
   <button
     class="btn btn-primary next"
-    [disabled]="currentIndex === filteredMedias.length - 1"
+    [disabled]="currentIndex === medias.length - 1"
     (click)="nextMedia()"
   >
     {{ "media-viewer.next" | translate }}
@@ -44,7 +43,7 @@
     <div ngbDropdownMenu aria-labelledby="dropdownBasic1">
       <button
         ngbDropdownItem
-        *ngFor="let item of filteredMedias; index as indexOfelement"
+        *ngFor="let item of medias; index as indexOfelement"
         class="list-element"
         (click)="selectedMedia(indexOfelement)"
       >
diff --git a/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.spec.ts b/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.spec.ts
index 846b5878f4..92aa229b01 100644
--- a/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.spec.ts
+++ b/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.spec.ts
@@ -83,7 +83,6 @@ describe('MediaViewerVideoComponent', () => {
     fixture = TestBed.createComponent(MediaViewerVideoComponent);
     component = fixture.componentInstance;
     component.medias = mockMediaViewerItem;
-    component.filteredMedias = mockMediaViewerItem;
     fixture.detectChanges();
   });
 
@@ -94,7 +93,6 @@ describe('MediaViewerVideoComponent', () => {
   describe('should show controller buttons when the having mode then one video', () => {
     beforeEach(() => {
       component.medias = mockMediaViewerItems;
-      component.filteredMedias = mockMediaViewerItems;
       fixture.detectChanges();
     });
 
diff --git a/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.ts b/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.ts
index 0524d31b8b..8b8b4d1531 100644
--- a/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.ts
+++ b/src/app/item-page/media-viewer/media-viewer-video/media-viewer-video.component.ts
@@ -1,7 +1,8 @@
-import { Component, Input, OnInit } from '@angular/core';
+import { Component, Input } from '@angular/core';
 import { MediaViewerItem } from '../../../core/shared/media-viewer-item.model';
 import { languageHelper } from './language-helper';
-import { CaptionInfo} from './caption-info';
+import { CaptionInfo } from './caption-info';
+import { Bitstream } from 'src/app/core/shared/bitstream.model';
 
 /**
  * This component renders a video viewer and playlist for the media viewer
@@ -11,12 +12,13 @@ import { CaptionInfo} from './caption-info';
   templateUrl: './media-viewer-video.component.html',
   styleUrls: ['./media-viewer-video.component.scss'],
 })
-export class MediaViewerVideoComponent implements OnInit {
+export class MediaViewerVideoComponent {
   @Input() medias: MediaViewerItem[];
 
-  filteredMedias: MediaViewerItem[];
+  @Input() captions: Bitstream[] = [];
+
+  isCollapsed = false;
 
-  isCollapsed: boolean;
   currentIndex = 0;
 
   replacements = {
@@ -24,11 +26,6 @@ export class MediaViewerVideoComponent implements OnInit {
     audio: './assets/images/replacement_audio.svg',
   };
 
-  ngOnInit() {
-    this.isCollapsed = false;
-    this.filteredMedias = this.medias.filter((media) => media.format === 'audio' || media.format === 'video');
-  }
-
   /**
    * This method check if there is caption file for the media
    * The caption file name is the media name plus "-" following two letter
@@ -39,29 +36,24 @@ export class MediaViewerVideoComponent implements OnInit {
    * Two letter language code reference
    * https://www.w3schools.com/tags/ref_language_codes.asp
    */
-  getMediaCap(name: string): CaptionInfo[] {
-    let filteredCapMedias: MediaViewerItem[];
-    let capInfos: CaptionInfo[] = [];
-    filteredCapMedias = this.medias
-       .filter((media) => media.mimetype === 'text/vtt')
-       .filter((media) => media.bitstream.name.substring(0, (media.bitstream.name.length - 7) ).toLowerCase() === name.toLowerCase());
+  getMediaCap(name: string, captions: Bitstream[]): CaptionInfo[] {
+    const capInfos: CaptionInfo[] = [];
+    const filteredCapMedias: Bitstream[] = captions
+      .filter((media: Bitstream) => media.name.substring(0, (media.name.length - 7)).toLowerCase() === name.toLowerCase());
 
-    if (filteredCapMedias) {
-      filteredCapMedias
-        .forEach((media, index) => {
-          let srclang: string = media.bitstream.name.slice(-6, -4).toLowerCase();
-          capInfos.push(new CaptionInfo(
-            media.bitstream._links.content.href,
-            srclang,
-            languageHelper[srclang]
-          ));
-        });
+    for (const media of filteredCapMedias) {
+      let srclang: string = media.name.slice(-6, -4).toLowerCase();
+      capInfos.push(new CaptionInfo(
+        media._links.content.href,
+        srclang,
+        languageHelper[srclang],
+      ));
     }
     return capInfos;
   }
 
   /**
-   * This method sets the reviced index into currentIndex
+   * This method sets the received index into currentIndex
    * @param index Selected index
    */
   selectedMedia(index: number) {
@@ -69,14 +61,14 @@ export class MediaViewerVideoComponent implements OnInit {
   }
 
   /**
-   * This method increade the number of the currentIndex
+   * This method increases the number of the currentIndex
    */
   nextMedia() {
     this.currentIndex++;
   }
 
   /**
-   * This method decrese the number of the currentIndex
+   * This method decreases the number of the currentIndex
    */
   prevMedia() {
     this.currentIndex--;
diff --git a/src/app/item-page/media-viewer/media-viewer-video/themed-media-viewer-video.component.ts b/src/app/item-page/media-viewer/media-viewer-video/themed-media-viewer-video.component.ts
index 9715837fdc..8ae45b2dd3 100644
--- a/src/app/item-page/media-viewer/media-viewer-video/themed-media-viewer-video.component.ts
+++ b/src/app/item-page/media-viewer/media-viewer-video/themed-media-viewer-video.component.ts
@@ -2,6 +2,7 @@ import { Component, Input } from '@angular/core';
 import { ThemedComponent } from '../../../shared/theme-support/themed.component';
 import { MediaViewerItem } from '../../../core/shared/media-viewer-item.model';
 import { MediaViewerVideoComponent } from './media-viewer-video.component';
+import { Bitstream } from '../../../core/shared/bitstream.model';
 
 /**
  * Themed wrapper for {@link MediaViewerVideoComponent}.
@@ -15,8 +16,11 @@ export class ThemedMediaViewerVideoComponent extends ThemedComponent<MediaViewer
 
   @Input() medias: MediaViewerItem[];
 
+  @Input() captions: Bitstream[];
+
   protected inAndOutputNames: (keyof MediaViewerVideoComponent & keyof this)[] = [
     'medias',
+    'captions',
   ];
 
   protected getComponentName(): string {
diff --git a/src/app/item-page/media-viewer/media-viewer.component.html b/src/app/item-page/media-viewer/media-viewer.component.html
index 231c48c86d..c8a02e039c 100644
--- a/src/app/item-page/media-viewer/media-viewer.component.html
+++ b/src/app/item-page/media-viewer/media-viewer.component.html
@@ -5,32 +5,23 @@
     [showMessage]="false"
   ></ds-themed-loading>
   <div class="media-viewer" *ngIf="!isLoading">
-    <ng-container *ngIf="mediaList.length > 0">
-      <ng-container *ngIf="videoOptions">
-        <ng-container
-          *ngIf="
-            mediaList[0]?.format === 'video' || mediaList[0]?.format === 'audio'
-          "
-        >
-          <ds-themed-media-viewer-video [medias]="mediaList"></ds-themed-media-viewer-video>
+    <ng-container *ngIf="mediaList.length > 0; else showThumbnail">
+      <ng-container *ngVar="mediaOptions.video && ['audio', 'video'].includes(mediaList[0]?.format) as showVideo">
+        <ng-container *ngVar="mediaOptions.image && mediaList[0]?.format === 'image' as showImage">
+          <ds-themed-media-viewer-video *ngIf="showVideo" [medias]="mediaList" [captions]="captions$ | async"></ds-themed-media-viewer-video>
+          <ds-themed-media-viewer-image *ngIf="showImage" [images]="mediaList"></ds-themed-media-viewer-image>
+          <ng-container *ngIf="showImage || showVideo; else showThumbnail"></ng-container>
         </ng-container>
       </ng-container>
-        <ng-container *ngIf="mediaList[0]?.format === 'image'">
-          <ds-themed-media-viewer-image [images]="mediaList"></ds-themed-media-viewer-image>
-        </ng-container>
-    </ng-container>
-    <ng-container
-      *ngIf="
-        ((mediaList[0]?.format !== 'image') &&
-          (!videoOptions || mediaList[0]?.format !== 'video') &&
-          (!videoOptions || mediaList[0]?.format !== 'audio')) ||
-        mediaList.length === 0
-      "
-    >
-      <ds-themed-media-viewer-image
-        [image]="mediaList[0]?.thumbnail || thumbnailPlaceholder"
-        [preview]="false"
-      ></ds-themed-media-viewer-image>
     </ng-container>
   </div>
+  <ng-template #showThumbnail>
+    <ds-themed-media-viewer-image *ngIf="mediaOptions.image && mediaOptions.video"
+      [image]="(thumbnailsRD$ | async)?.payload?.page[0]?._links.content.href || thumbnailPlaceholder"
+      [preview]="false"
+    ></ds-themed-media-viewer-image>
+    <ds-thumbnail *ngIf="!(mediaOptions.image && mediaOptions.video)"
+                  [thumbnail]="(thumbnailsRD$ | async)?.payload?.page[0]">
+    </ds-thumbnail>
+  </ng-template>
 </ng-container>
diff --git a/src/app/item-page/media-viewer/media-viewer.component.spec.ts b/src/app/item-page/media-viewer/media-viewer.component.spec.ts
index 7703f14bd1..0c170ac8cf 100644
--- a/src/app/item-page/media-viewer/media-viewer.component.spec.ts
+++ b/src/app/item-page/media-viewer/media-viewer.component.spec.ts
@@ -61,7 +61,7 @@ describe('MediaViewerComponent', () => {
   );
 
   beforeEach(waitForAsync(() => {
-    TestBed.configureTestingModule({
+    return TestBed.configureTestingModule({
       imports: [
         TranslateModule.forRoot({
           loader: {
@@ -94,7 +94,10 @@ describe('MediaViewerComponent', () => {
   describe('when the bitstreams are loading', () => {
     beforeEach(() => {
       comp.mediaList$.next([mockMediaViewerItem]);
-      comp.videoOptions = true;
+      comp.mediaOptions = {
+        image: true,
+        video: true,
+      };
       comp.isLoading = true;
       fixture.detectChanges();
     });
@@ -118,7 +121,10 @@ describe('MediaViewerComponent', () => {
   describe('when the bitstreams loading is failed', () => {
     beforeEach(() => {
       comp.mediaList$.next([]);
-      comp.videoOptions = true;
+      comp.mediaOptions = {
+        image: true,
+        video: true,
+      };
       comp.isLoading = false;
       fixture.detectChanges();
     });
diff --git a/src/app/item-page/media-viewer/media-viewer.component.ts b/src/app/item-page/media-viewer/media-viewer.component.ts
index e4113ed931..242e50646e 100644
--- a/src/app/item-page/media-viewer/media-viewer.component.ts
+++ b/src/app/item-page/media-viewer/media-viewer.component.ts
@@ -1,4 +1,4 @@
-import { Component, Input, OnInit } from '@angular/core';
+import { Component, Input, OnDestroy, OnInit } from '@angular/core';
 import { BehaviorSubject, Observable } from 'rxjs';
 import { filter, take } from 'rxjs/operators';
 import { BitstreamDataService } from '../../core/data/bitstream-data.service';
@@ -11,6 +11,9 @@ import { MediaViewerItem } from '../../core/shared/media-viewer-item.model';
 import { getFirstSucceededRemoteDataPayload } from '../../core/shared/operators';
 import { hasValue } from '../../shared/empty.util';
 import { followLink } from '../../shared/utils/follow-link-config.model';
+import { MediaViewerConfig } from '../../../config/media-viewer-config.interface';
+import { environment } from '../../../environments/environment';
+import { Subscription } from 'rxjs/internal/Subscription';
 
 /**
  * This component renders the media viewers
@@ -20,51 +23,71 @@ import { followLink } from '../../shared/utils/follow-link-config.model';
   templateUrl: './media-viewer.component.html',
   styleUrls: ['./media-viewer.component.scss'],
 })
-export class MediaViewerComponent implements OnInit {
+export class MediaViewerComponent implements OnDestroy, OnInit {
   @Input() item: Item;
-  @Input() videoOptions: boolean;
 
-  mediaList$: BehaviorSubject<MediaViewerItem[]>;
+  @Input() mediaOptions: MediaViewerConfig = environment.mediaViewer;
 
-  isLoading: boolean;
+  mediaList$: BehaviorSubject<MediaViewerItem[]> = new BehaviorSubject([]);
+
+  captions$: BehaviorSubject<Bitstream[]> = new BehaviorSubject([]);
+
+  isLoading = true;
 
   thumbnailPlaceholder = './assets/images/replacement_document.svg';
 
-  constructor(protected bitstreamDataService: BitstreamDataService) {}
+  thumbnailsRD$: Observable<RemoteData<PaginatedList<Bitstream>>>;
+
+  subs: Subscription[] = [];
+
+  constructor(
+    protected bitstreamDataService: BitstreamDataService,
+  ) {
+  }
+
+  ngOnDestroy(): void {
+    this.subs.forEach((subscription: Subscription) => subscription.unsubscribe());
+  }
 
   /**
-   * This metod loads all the Bitstreams and Thumbnails and contert it to media item
+   * This method loads all the Bitstreams and Thumbnails and converts it to {@link MediaViewerItem}s
    */
   ngOnInit(): void {
-    this.mediaList$ = new BehaviorSubject([]);
-    this.isLoading = true;
-    this.loadRemoteData('ORIGINAL').subscribe((bitstreamsRD) => {
+    const types: string[] = [
+      ...(this.mediaOptions.image ? ['image'] : []),
+      ...(this.mediaOptions.video ? ['audio', 'video'] : []),
+    ];
+    this.thumbnailsRD$ = this.loadRemoteData('THUMBNAIL');
+    this.subs.push(this.loadRemoteData('ORIGINAL').subscribe((bitstreamsRD: RemoteData<PaginatedList<Bitstream>>) => {
       if (bitstreamsRD.payload.page.length === 0) {
         this.isLoading = false;
         this.mediaList$.next([]);
       } else {
-        this.loadRemoteData('THUMBNAIL').subscribe((thumbnailsRD) => {
+        this.subs.push(this.thumbnailsRD$.subscribe((thumbnailsRD: RemoteData<PaginatedList<Bitstream>>) => {
           for (
             let index = 0;
             index < bitstreamsRD.payload.page.length;
             index++
           ) {
-            bitstreamsRD.payload.page[index].format
+            this.subs.push(bitstreamsRD.payload.page[index].format
               .pipe(getFirstSucceededRemoteDataPayload())
-              .subscribe((format) => {
-                const current = this.mediaList$.getValue();
+              .subscribe((format: BitstreamFormat) => {
                 const mediaItem = this.createMediaViewerItem(
                   bitstreamsRD.payload.page[index],
                   format,
                   thumbnailsRD.payload && thumbnailsRD.payload.page[index]
                 );
-                this.mediaList$.next([...current, mediaItem]);
-              });
+                if (types.includes(mediaItem.format)) {
+                  this.mediaList$.next([...this.mediaList$.getValue(), mediaItem]);
+                } else if (format.mimetype === 'text/vtt') {
+                  this.captions$.next([...this.captions$.getValue(), bitstreamsRD.payload.page[index]]);
+                }
+              }));
           }
           this.isLoading = false;
-        });
+        }));
       }
-    });
+    }));
   }
 
   /**
@@ -94,16 +117,12 @@ export class MediaViewerComponent implements OnInit {
   }
 
   /**
-   * This method create MediaViewerItem from incoming bitstreams
-   * @param original original remote data bitstream
+   * This method creates a {@link MediaViewerItem} from incoming {@link Bitstream}s
+   * @param original original bitstream
    * @param format original bitstream format
-   * @param thumbnail trunbnail remote data bitstream
+   * @param thumbnail thumbnail bitstream
    */
-  createMediaViewerItem(
-    original: Bitstream,
-    format: BitstreamFormat,
-    thumbnail: Bitstream
-  ): MediaViewerItem {
+  createMediaViewerItem(original: Bitstream, format: BitstreamFormat, thumbnail: Bitstream): MediaViewerItem {
     const mediaItem = new MediaViewerItem();
     mediaItem.bitstream = original;
     mediaItem.format = format.mimetype.split('/')[0];
diff --git a/src/app/item-page/media-viewer/themed-media-viewer.component.ts b/src/app/item-page/media-viewer/themed-media-viewer.component.ts
index 9886a258f5..6acf948616 100644
--- a/src/app/item-page/media-viewer/themed-media-viewer.component.ts
+++ b/src/app/item-page/media-viewer/themed-media-viewer.component.ts
@@ -2,6 +2,7 @@ import { Component, Input } from '@angular/core';
 import { ThemedComponent } from '../../shared/theme-support/themed.component';
 import { MediaViewerComponent } from './media-viewer.component';
 import { Item } from '../../core/shared/item.model';
+import { MediaViewerConfig } from '../../../config/media-viewer-config.interface';
 
 /**
  * Themed wrapper for {@link MediaViewerComponent}.
@@ -14,11 +15,11 @@ import { Item } from '../../core/shared/item.model';
 export class ThemedMediaViewerComponent extends ThemedComponent<MediaViewerComponent> {
 
   @Input() item: Item;
-  @Input() videoOptions: boolean;
+  @Input() mediaOptions: MediaViewerConfig;
 
   protected inAndOutputNames: (keyof MediaViewerComponent & keyof this)[] = [
     'item',
-    'videoOptions',
+    'mediaOptions',
   ];
 
   protected getComponentName(): string {
diff --git a/src/app/item-page/simple/item-types/publication/publication.component.html b/src/app/item-page/simple/item-types/publication/publication.component.html
index 5dacf87cfa..dcf243c63b 100644
--- a/src/app/item-page/simple/item-types/publication/publication.component.html
+++ b/src/app/item-page/simple/item-types/publication/publication.component.html
@@ -15,13 +15,13 @@
 </div>
 <div class="row">
   <div class="col-xs-12 col-md-4">
-    <ng-container *ngIf="!mediaViewer.image">
+    <ng-container *ngIf="!(mediaViewer.image || mediaViewer.video)">
       <ds-metadata-field-wrapper [hideIfNoTextContent]="false">
         <ds-thumbnail [thumbnail]="object?.thumbnail | async"></ds-thumbnail>
       </ds-metadata-field-wrapper>
     </ng-container>
-    <div *ngIf="mediaViewer.image" class="mb-2">
-      <ds-themed-media-viewer [item]="object" [videoOptions]="mediaViewer.video"></ds-themed-media-viewer>
+    <div *ngIf="mediaViewer.image || mediaViewer.video" class="mb-2">
+      <ds-themed-media-viewer [item]="object"></ds-themed-media-viewer>
     </div>
     <ds-themed-item-page-file-section [item]="object"></ds-themed-item-page-file-section>
     <ds-item-page-date-field [item]="object"></ds-item-page-date-field>
diff --git a/src/app/item-page/simple/item-types/untyped-item/untyped-item.component.html b/src/app/item-page/simple/item-types/untyped-item/untyped-item.component.html
index 9c0039d263..ff98057334 100644
--- a/src/app/item-page/simple/item-types/untyped-item/untyped-item.component.html
+++ b/src/app/item-page/simple/item-types/untyped-item/untyped-item.component.html
@@ -16,13 +16,13 @@
 </div>
 <div class="row">
   <div class="col-xs-12 col-md-4">
-    <ng-container *ngIf="!mediaViewer.image">
+    <ng-container *ngIf="!(mediaViewer.image || mediaViewer.video)">
       <ds-metadata-field-wrapper [hideIfNoTextContent]="false">
         <ds-thumbnail [thumbnail]="object?.thumbnail | async"></ds-thumbnail>
       </ds-metadata-field-wrapper>
     </ng-container>
-    <div *ngIf="mediaViewer.image" class="mb-2">
-      <ds-themed-media-viewer [item]="object" [videoOptions]="mediaViewer.video"></ds-themed-media-viewer>
+    <div *ngIf="mediaViewer.image || mediaViewer.video" class="mb-2">
+      <ds-themed-media-viewer [item]="object"></ds-themed-media-viewer>
     </div>
     <ds-themed-item-page-file-section [item]="object"></ds-themed-item-page-file-section>
     <ds-item-page-date-field [item]="object"></ds-item-page-date-field>
diff --git a/src/app/item-page/simple/metadata-representation-list/themed-metadata-representation-list.component.ts b/src/app/item-page/simple/metadata-representation-list/themed-metadata-representation-list.component.ts
index e7a526bb05..a290b82dd9 100644
--- a/src/app/item-page/simple/metadata-representation-list/themed-metadata-representation-list.component.ts
+++ b/src/app/item-page/simple/metadata-representation-list/themed-metadata-representation-list.component.ts
@@ -19,7 +19,7 @@ export class ThemedMetadataRepresentationListComponent extends ThemedComponent<M
 
   @Input() label: string;
 
-  @Input() incrementBy = 10;
+  @Input() incrementBy: number;
 
   protected getComponentName(): string {
     return 'MetadataRepresentationListComponent';
diff --git a/src/app/my-dspace-page/themed-my-dspace-page.component.ts b/src/app/my-dspace-page/themed-my-dspace-page.component.ts
index 2c74da052e..55ebc51c8d 100644
--- a/src/app/my-dspace-page/themed-my-dspace-page.component.ts
+++ b/src/app/my-dspace-page/themed-my-dspace-page.component.ts
@@ -11,7 +11,6 @@ import { MyDSpacePageComponent } from './my-dspace-page.component';
   templateUrl: './../shared/theme-support/themed.component.html'
 })
 export class ThemedMyDSpacePageComponent extends ThemedComponent<MyDSpacePageComponent> {
-  protected inAndOutputNames: (keyof MyDSpacePageComponent & keyof this)[];
 
   protected getComponentName(): string {
     return 'MyDSpacePageComponent';
diff --git a/src/app/search-page/themed-configuration-search-page.component.ts b/src/app/search-page/themed-configuration-search-page.component.ts
index e4d6e93402..e367ee5238 100644
--- a/src/app/search-page/themed-configuration-search-page.component.ts
+++ b/src/app/search-page/themed-configuration-search-page.component.ts
@@ -28,19 +28,18 @@ export class ThemedConfigurationSearchPageComponent extends ThemedComponent<Conf
   /**
    * True when the search component should show results on the current page
    */
-  @Input() inPlaceSearch = true;
+  @Input() inPlaceSearch: boolean;
 
   /**
    * Whether or not the search bar should be visible
    */
-  @Input()
-  searchEnabled = true;
+  @Input() searchEnabled: boolean;
 
   /**
    * The width of the sidebar (bootstrap columns)
    */
   @Input()
-  sideBarWidth = 3;
+  sideBarWidth: number;
 
   /**
    * The currently applied configuration (determines title of search)
@@ -66,7 +65,7 @@ export class ThemedConfigurationSearchPageComponent extends ThemedComponent<Conf
   }
 
   protected importUnthemedComponent(): Promise<any> {
-    return import(`./configuration-search-page.component`);
+    return import('./configuration-search-page.component');
   }
 
 }
diff --git a/src/app/shared/collection-dropdown/themed-collection-dropdown.component.ts b/src/app/shared/collection-dropdown/themed-collection-dropdown.component.ts
index 27c883099d..3fb338186f 100644
--- a/src/app/shared/collection-dropdown/themed-collection-dropdown.component.ts
+++ b/src/app/shared/collection-dropdown/themed-collection-dropdown.component.ts
@@ -11,11 +11,11 @@ export class ThemedCollectionDropdownComponent extends ThemedComponent<Collectio
 
   @Input() entityType: string;
 
-  @Output() searchComplete = new EventEmitter<any>();
+  @Output() searchComplete: EventEmitter<any> = new EventEmitter();
 
-  @Output() theOnlySelectable = new EventEmitter<CollectionListEntry>();
+  @Output() theOnlySelectable: EventEmitter<CollectionListEntry> = new EventEmitter();
 
-  @Output() selectionChange = new EventEmitter<CollectionListEntry>();
+  @Output() selectionChange = new EventEmitter();
 
   protected inAndOutputNames: (keyof CollectionDropdownComponent & keyof this)[] = ['entityType', 'searchComplete', 'theOnlySelectable', 'selectionChange'];
 
diff --git a/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/external-source-tab/themed-dynamic-lookup-relation-external-source-tab.component.ts b/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/external-source-tab/themed-dynamic-lookup-relation-external-source-tab.component.ts
index f3d8421365..637941ce5b 100644
--- a/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/external-source-tab/themed-dynamic-lookup-relation-external-source-tab.component.ts
+++ b/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/external-source-tab/themed-dynamic-lookup-relation-external-source-tab.component.ts
@@ -4,27 +4,14 @@ import { RelationshipOptions } from '../../../models/relationship-options.model'
 import { ListableObject } from '../../../../../object-collection/shared/listable-object.model';
 import { Context } from '../../../../../../core/shared/context.model';
 import { Item } from '../../../../../../core/shared/item.model';
-import { SEARCH_CONFIG_SERVICE } from '../../../../../../my-dspace-page/my-dspace-page.component';
-import { SearchConfigurationService } from '../../../../../../core/shared/search/search-configuration.service';
 import { Collection } from '../../../../../../core/shared/collection.model';
 import { ExternalSource } from '../../../../../../core/shared/external-source.model';
 import { DsDynamicLookupRelationExternalSourceTabComponent } from './dynamic-lookup-relation-external-source-tab.component';
-import { fadeIn, fadeInOut } from '../../../../../animations/fade';
 
 @Component({
   selector: 'ds-themed-dynamic-lookup-relation-external-source-tab',
   styleUrls: [],
   templateUrl: '../../../../../theme-support/themed.component.html',
-  providers: [
-    {
-      provide: SEARCH_CONFIG_SERVICE,
-      useClass: SearchConfigurationService
-    }
-  ],
-  animations: [
-    fadeIn,
-    fadeInOut
-  ]
 })
 export class ThemedDynamicLookupRelationExternalSourceTabComponent extends ThemedComponent<DsDynamicLookupRelationExternalSourceTabComponent> {
   protected inAndOutputNames: (keyof DsDynamicLookupRelationExternalSourceTabComponent & keyof this)[] = ['label', 'listId',
@@ -44,7 +31,7 @@ export class ThemedDynamicLookupRelationExternalSourceTabComponent extends Theme
 
   @Input() repeatable: boolean;
 
-  @Output() importedObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() importedObject: EventEmitter<ListableObject> = new EventEmitter();
 
   @Input() externalSource: ExternalSource;
 
diff --git a/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/search-tab/themed-dynamic-lookup-relation-search-tab.component.ts b/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/search-tab/themed-dynamic-lookup-relation-search-tab.component.ts
index da998ed5a6..d44f8f84a0 100644
--- a/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/search-tab/themed-dynamic-lookup-relation-search-tab.component.ts
+++ b/src/app/shared/form/builder/ds-dynamic-form-ui/relation-lookup-modal/search-tab/themed-dynamic-lookup-relation-search-tab.component.ts
@@ -10,19 +10,11 @@ import { Item } from '../../../../../../core/shared/item.model';
 import { SearchResult } from '../../../../../search/models/search-result.model';
 import { SearchObjects } from '../../../../../search/models/search-objects.model';
 import { DSpaceObject } from '../../../../../../core/shared/dspace-object.model';
-import { SEARCH_CONFIG_SERVICE } from '../../../../../../my-dspace-page/my-dspace-page.component';
-import { SearchConfigurationService } from '../../../../../../core/shared/search/search-configuration.service';
 
 @Component({
   selector: 'ds-themed-dynamic-lookup-relation-search-tab',
   styleUrls: [],
   templateUrl: '../../../../../theme-support/themed.component.html',
-  providers: [
-    {
-      provide: SEARCH_CONFIG_SERVICE,
-      useClass: SearchConfigurationService
-    }
-  ]
 })
 export class ThemedDynamicLookupRelationSearchTabComponent extends ThemedComponent<DsDynamicLookupRelationSearchTabComponent> {
   protected inAndOutputNames: (keyof DsDynamicLookupRelationSearchTabComponent & keyof this)[] = ['relationship', 'listId',
@@ -51,11 +43,11 @@ export class ThemedDynamicLookupRelationSearchTabComponent extends ThemedCompone
 
   @Input() isEditRelationship: boolean;
 
-  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter();
 
-  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter();
 
-  @Output() resultFound: EventEmitter<SearchObjects<DSpaceObject>> = new EventEmitter<SearchObjects<DSpaceObject>>();
+  @Output() resultFound: EventEmitter<SearchObjects<DSpaceObject>> = new EventEmitter();
 
   protected getComponentName(): string {
     return 'DsDynamicLookupRelationSearchTabComponent';
diff --git a/src/app/shared/loading/themed-loading.component.ts b/src/app/shared/loading/themed-loading.component.ts
index ffdf9d3cbe..48773d75c8 100644
--- a/src/app/shared/loading/themed-loading.component.ts
+++ b/src/app/shared/loading/themed-loading.component.ts
@@ -14,8 +14,8 @@ import { ThemeService } from '../theme-support/theme.service';
 export class ThemedLoadingComponent extends ThemedComponent<LoadingComponent> {
 
   @Input() message: string;
-  @Input() showMessage = true;
-  @Input() spinner = false;
+  @Input() showMessage: boolean;
+  @Input() spinner: boolean;
 
   protected inAndOutputNames: (keyof LoadingComponent & keyof this)[] = ['message', 'showMessage', 'spinner'];
 
diff --git a/src/app/shared/object-list/my-dspace-result-list-element/item-list-preview/themed-item-list-preview.component.ts b/src/app/shared/object-list/my-dspace-result-list-element/item-list-preview/themed-item-list-preview.component.ts
index ea5a38e3cb..9166e42040 100644
--- a/src/app/shared/object-list/my-dspace-result-list-element/item-list-preview/themed-item-list-preview.component.ts
+++ b/src/app/shared/object-list/my-dspace-result-list-element/item-list-preview/themed-item-list-preview.component.ts
@@ -1,11 +1,10 @@
-import { ChangeDetectorRef, Component, ComponentFactoryResolver, Input } from '@angular/core';
+import { Component, Input } from '@angular/core';
 import { ThemedComponent } from '../../../theme-support/themed.component';
 import { ItemListPreviewComponent } from './item-list-preview.component';
 import { Item } from '../../../../core/shared/item.model';
 import { MyDspaceItemStatusType } from '../../../object-collection/shared/mydspace-item-status/my-dspace-item-status-type';
 import { SearchResult } from '../../../search/models/search-result.model';
 import { WorkflowItem } from 'src/app/core/submission/models/workflowitem.model';
-import { ThemeService } from 'src/app/shared/theme-support/theme.service';
 
 /**
  * Themed wrapper for ItemListPreviewComponent
@@ -24,22 +23,10 @@ export class ThemedItemListPreviewComponent extends ThemedComponent<ItemListPrev
 
   @Input() status: MyDspaceItemStatusType;
 
-  @Input() showSubmitter = false;
+  @Input() showSubmitter: boolean;
 
   @Input() workflowItem: WorkflowItem;
 
-  constructor(
-    protected resolver: ComponentFactoryResolver,
-    protected cdr: ChangeDetectorRef,
-    protected themeService: ThemeService,
-  ) {
-    super(resolver, cdr, themeService);
-  }
-
-  ngOnInit() {
-    super.ngOnInit();
-  }
-
   protected getComponentName(): string {
     return 'ItemListPreviewComponent';
   }
diff --git a/src/app/shared/object-list/themed-object-list.component.ts b/src/app/shared/object-list/themed-object-list.component.ts
index 8d47f9e108..913302351f 100644
--- a/src/app/shared/object-list/themed-object-list.component.ts
+++ b/src/app/shared/object-list/themed-object-list.component.ts
@@ -1,7 +1,6 @@
 import {Component, EventEmitter, Input, Output} from '@angular/core';
 import { ObjectListComponent } from './object-list.component';
 import { ThemedComponent } from '../theme-support/themed.component';
-import {ViewMode} from '../../core/shared/view-mode.model';
 import {PaginationComponentOptions} from '../pagination/pagination-component-options.model';
 import {SortDirection, SortOptions} from '../../core/cache/models/sort-options.model';
 import {CollectionElementLinkType} from '../object-collection/collection-element-link.type';
@@ -19,10 +18,6 @@ import {ListableObject} from '../object-collection/shared/listable-object.model'
   templateUrl: '../theme-support/themed.component.html',
 })
 export class ThemedObjectListComponent extends ThemedComponent<ObjectListComponent> {
-  /**
-   * The view mode of the this component
-   */
-  viewMode = ViewMode.ListElement;
 
   /**
    * The current pagination configuration
@@ -37,18 +32,20 @@ export class ThemedObjectListComponent extends ThemedComponent<ObjectListCompone
   /**
    * Whether or not the list elements have a border
    */
-  @Input() hasBorder = false;
+  @Input() hasBorder: boolean;
 
   /**
    * The whether or not the gear is hidden
    */
-  @Input() hideGear = false;
+  @Input() hideGear: boolean;
 
   /**
    * Whether or not the pager is visible when there is only a single page of results
    */
-  @Input() hidePagerWhenSinglePage = true;
-  @Input() selectable = false;
+  @Input() hidePagerWhenSinglePage: boolean;
+
+  @Input() selectable: boolean;
+
   @Input() selectionConfig: { repeatable: boolean, listId: string };
 
   /**
@@ -64,12 +61,12 @@ export class ThemedObjectListComponent extends ThemedComponent<ObjectListCompone
   /**
    * Option for hiding the pagination detail
    */
-  @Input() hidePaginationDetail = false;
+  @Input() hidePaginationDetail: boolean;
 
   /**
    * Whether or not to add an import button to the object
    */
-  @Input() importable = false;
+  @Input() importable: boolean;
 
   /**
    * Config used for the import button
@@ -79,42 +76,24 @@ export class ThemedObjectListComponent extends ThemedComponent<ObjectListCompone
   /**
    * Whether or not the pagination should be rendered as simple previous and next buttons instead of the normal pagination
    */
-  @Input() showPaginator = true;
+  @Input() showPaginator: boolean;
 
   /**
    * Emit when one of the listed object has changed.
    */
-  @Output() contentChange = new EventEmitter<any>();
+  @Output() contentChange: EventEmitter<any> = new EventEmitter();
 
   /**
    * If showPaginator is set to true, emit when the previous button is clicked
    */
-  @Output() prev = new EventEmitter<boolean>();
+  @Output() prev: EventEmitter<boolean> = new EventEmitter();
 
   /**
    * If showPaginator is set to true, emit when the next button is clicked
    */
-  @Output() next = new EventEmitter<boolean>();
+  @Output() next: EventEmitter<boolean> = new EventEmitter();
 
-  /**
-   * The current listable objects
-   */
-  private _objects: RemoteData<PaginatedList<ListableObject>>;
-
-  /**
-   * Setter for the objects
-   * @param objects The new objects
-   */
-  @Input() set objects(objects: RemoteData<PaginatedList<ListableObject>>) {
-    this._objects = objects;
-  }
-
-  /**
-   * Getter to return the current objects
-   */
-  get objects() {
-    return this._objects;
-  }
+  @Input() objects: RemoteData<PaginatedList<ListableObject>>;
 
   /**
    * An event fired when the page is changed.
@@ -123,48 +102,45 @@ export class ThemedObjectListComponent extends ThemedComponent<ObjectListCompone
   @Output() change: EventEmitter<{
     pagination: PaginationComponentOptions,
     sort: SortOptions
-  }> = new EventEmitter<{
-    pagination: PaginationComponentOptions,
-    sort: SortOptions
-  }>();
+  }> = new EventEmitter();
 
   /**
    * An event fired when the page is changed.
    * Event's payload equals to the newly selected page.
    */
-  @Output() pageChange: EventEmitter<number> = new EventEmitter<number>();
+  @Output() pageChange: EventEmitter<number> = new EventEmitter();
 
   /**
    * An event fired when the page wsize is changed.
    * Event's payload equals to the newly selected page size.
    */
-  @Output() pageSizeChange: EventEmitter<number> = new EventEmitter<number>();
+  @Output() pageSizeChange: EventEmitter<number> = new EventEmitter();
 
   /**
    * An event fired when the sort direction is changed.
    * Event's payload equals to the newly selected sort direction.
    */
-  @Output() sortDirectionChange: EventEmitter<SortDirection> = new EventEmitter<SortDirection>();
+  @Output() sortDirectionChange: EventEmitter<SortDirection> = new EventEmitter();
 
   /**
    * An event fired when on of the pagination parameters changes
    */
-  @Output() paginationChange: EventEmitter<any> = new EventEmitter<any>();
+  @Output() paginationChange: EventEmitter<any> = new EventEmitter();
 
-  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter();
 
-  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter();
 
   /**
    * Send an import event to the parent component
    */
-  @Output() importObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() importObject: EventEmitter<ListableObject> = new EventEmitter();
 
   /**
    * An event fired when the sort field is changed.
    * Event's payload equals to the newly selected sort field.
    */
-  @Output() sortFieldChange: EventEmitter<string> = new EventEmitter<string>();
+  @Output() sortFieldChange: EventEmitter<string> = new EventEmitter();
 
   inAndOutputNames: (keyof ObjectListComponent & keyof this)[] = [
     'config',
diff --git a/src/app/shared/search/search-results/themed-search-results.component.ts b/src/app/shared/search/search-results/themed-search-results.component.ts
index 655b68d22c..7abfb2dfa8 100644
--- a/src/app/shared/search/search-results/themed-search-results.component.ts
+++ b/src/app/shared/search/search-results/themed-search-results.component.ts
@@ -29,7 +29,7 @@ export class ThemedSearchResultsComponent extends ThemedComponent<SearchResultsC
 
   @Input() searchConfig: PaginatedSearchOptions;
 
-  @Input() showCsvExport = false;
+  @Input() showCsvExport: boolean;
 
   @Input() sortConfig: SortOptions;
 
@@ -37,21 +37,21 @@ export class ThemedSearchResultsComponent extends ThemedComponent<SearchResultsC
 
   @Input() configuration: string;
 
-  @Input() disableHeader = false;
+  @Input() disableHeader: boolean;
 
-  @Input() selectable = false;
+  @Input() selectable: boolean;
 
   @Input() context: Context;
 
-  @Input() hidePaginationDetail = false;
+  @Input() hidePaginationDetail: boolean;
 
-  @Input() selectionConfig: SelectionConfig = null;
+  @Input() selectionConfig: SelectionConfig;
 
-  @Output() contentChange: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() contentChange: EventEmitter<ListableObject> = new EventEmitter();
 
-  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter();
 
-  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter();
 
   protected getComponentName(): string {
     return 'SearchResultsComponent';
diff --git a/src/app/shared/search/search.component.ts b/src/app/shared/search/search.component.ts
index d1c21d6d0e..a5b9fb9c7d 100644
--- a/src/app/shared/search/search.component.ts
+++ b/src/app/shared/search/search.component.ts
@@ -136,7 +136,7 @@ export class SearchComponent implements OnInit {
   /**
    * List of available view mode
    */
-  @Input() useUniquePageId: false;
+  @Input() useUniquePageId: boolean;
 
   /**
    * List of available view mode
diff --git a/src/app/shared/search/themed-search.component.ts b/src/app/shared/search/themed-search.component.ts
index 5c033d30f9..44c22c8925 100644
--- a/src/app/shared/search/themed-search.component.ts
+++ b/src/app/shared/search/themed-search.component.ts
@@ -11,7 +11,7 @@ import { DSpaceObject } from '../../core/shared/dspace-object.model';
 import { ListableObject } from '../object-collection/shared/listable-object.model';
 
 /**
- * Themed wrapper for SearchComponent
+ * Themed wrapper for {@link SearchComponent}
  */
 @Component({
   selector: 'ds-themed-search',
@@ -21,53 +21,53 @@ import { ListableObject } from '../object-collection/shared/listable-object.mode
 export class ThemedSearchComponent extends ThemedComponent<SearchComponent> {
   protected inAndOutputNames: (keyof SearchComponent & keyof this)[] = ['configurationList', 'context', 'configuration', 'fixedFilterQuery', 'useCachedVersionIfAvailable', 'inPlaceSearch', 'linkType', 'paginationId', 'searchEnabled', 'sideBarWidth', 'searchFormPlaceholder', 'selectable', 'selectionConfig', 'showCsvExport', 'showSidebar', 'showViewModes', 'useUniquePageId', 'viewModeList', 'showScopeSelector', 'resultFound', 'deselectObject', 'selectObject', 'trackStatistics', 'query'];
 
-  @Input() configurationList: SearchConfigurationOption[] = [];
+  @Input() configurationList: SearchConfigurationOption[];
 
-  @Input() context: Context = Context.Search;
+  @Input() context: Context;
 
-  @Input() configuration = 'default';
+  @Input() configuration: string;
 
   @Input() fixedFilterQuery: string;
 
-  @Input() useCachedVersionIfAvailable = true;
+  @Input() useCachedVersionIfAvailable: boolean;
 
-  @Input() inPlaceSearch = true;
+  @Input() inPlaceSearch: boolean;
 
   @Input() linkType: CollectionElementLinkType;
 
-  @Input() paginationId = 'spc';
+  @Input() paginationId: string;
 
-  @Input() searchEnabled = true;
+  @Input() searchEnabled: boolean;
 
-  @Input() sideBarWidth = 3;
+  @Input() sideBarWidth: number;
 
-  @Input() searchFormPlaceholder = 'search.search-form.placeholder';
+  @Input() searchFormPlaceholder: string;
 
-  @Input() selectable = false;
+  @Input() selectable: boolean;
 
   @Input() selectionConfig: SelectionConfig;
 
-  @Input() showCsvExport = false;
+  @Input() showCsvExport: boolean;
 
-  @Input() showSidebar = true;
+  @Input() showSidebar: boolean;
 
-  @Input() showViewModes = true;
+  @Input() showViewModes: boolean;
 
-  @Input() useUniquePageId: false;
+  @Input() useUniquePageId: boolean;
 
   @Input() viewModeList: ViewMode[];
 
-  @Input() showScopeSelector = true;
+  @Input() showScopeSelector: boolean;
 
-  @Input() trackStatistics = false;
+  @Input() trackStatistics: boolean;
 
   @Input() query: string;
 
-  @Output() resultFound: EventEmitter<SearchObjects<DSpaceObject>> = new EventEmitter<SearchObjects<DSpaceObject>>();
+  @Output() resultFound: EventEmitter<SearchObjects<DSpaceObject>> = new EventEmitter();
 
-  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() deselectObject: EventEmitter<ListableObject> = new EventEmitter();
 
-  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter<ListableObject>();
+  @Output() selectObject: EventEmitter<ListableObject> = new EventEmitter();
 
   protected getComponentName(): string {
     return 'SearchComponent';
diff --git a/src/app/shared/testing/auth-service.stub.ts b/src/app/shared/testing/auth-service.stub.ts
index b8d822252d..7f3d040042 100644
--- a/src/app/shared/testing/auth-service.stub.ts
+++ b/src/app/shared/testing/auth-service.stub.ts
@@ -17,6 +17,7 @@ export class AuthServiceStub {
   token: AuthTokenInfo = new AuthTokenInfo('token_test');
   impersonating: string;
   private _tokenExpired = false;
+  private _isExternalAuth = false;
   private redirectUrl;
 
   constructor() {
@@ -122,6 +123,13 @@ export class AuthServiceStub {
   checkAuthenticationCookie() {
     return;
   }
+  setExternalAuthStatus(externalCookie: boolean) {
+    this._isExternalAuth = externalCookie;
+  }
+
+  isExternalAuthentication(): Observable<boolean> {
+    return observableOf(this._isExternalAuth);
+  }
 
   retrieveAuthMethodsFromAuthStatus(status: AuthStatus) {
     return observableOf(authMethodsMock);
diff --git a/src/modules/app/browser-init.service.ts b/src/modules/app/browser-init.service.ts
index 687ecf0547..61d57f10f9 100644
--- a/src/modules/app/browser-init.service.ts
+++ b/src/modules/app/browser-init.service.ts
@@ -26,16 +26,21 @@ import { AuthService } from '../../app/core/auth/auth.service';
 import { ThemeService } from '../../app/shared/theme-support/theme.service';
 import { StoreAction, StoreActionTypes } from '../../app/store.actions';
 import { coreSelector } from '../../app/core/core.selectors';
-import { find, map } from 'rxjs/operators';
+import { filter, find, map } from 'rxjs/operators';
 import { isNotEmpty } from '../../app/shared/empty.util';
 import { logStartupMessage } from '../../../startup-message';
 import { MenuService } from '../../app/shared/menu/menu.service';
+import { RootDataService } from '../../app/core/data/root-data.service';
+import { firstValueFrom, Subscription } from 'rxjs';
 
 /**
  * Performs client-side initialization.
  */
 @Injectable()
 export class BrowserInitService extends InitService {
+
+  sub: Subscription;
+
   constructor(
     protected store: Store<AppState>,
     protected correlationIdService: CorrelationIdService,
@@ -51,6 +56,7 @@ export class BrowserInitService extends InitService {
     protected authService: AuthService,
     protected themeService: ThemeService,
     protected menuService: MenuService,
+    private rootDataService: RootDataService
   ) {
     super(
       store,
@@ -80,6 +86,7 @@ export class BrowserInitService extends InitService {
     return async () => {
       await this.loadAppState();
       this.checkAuthenticationToken();
+      this.externalAuthCheck();
       this.initCorrelationId();
 
       this.checkEnvironment();
@@ -134,4 +141,35 @@ export class BrowserInitService extends InitService {
   protected initGoogleAnalytics() {
     this.googleAnalyticsService.addTrackingIdToPage();
   }
+
+  /**
+   * During an external authentication flow invalidate the SSR transferState
+   * data in the cache. This allows the app to fetch fresh content.
+   * @private
+   */
+  private externalAuthCheck() {
+
+    this.sub = this.authService.isExternalAuthentication().pipe(
+        filter((externalAuth: boolean) => externalAuth)
+      ).subscribe(() => {
+        // Clear the transferState data.
+        this.rootDataService.invalidateRootCache();
+        this.authService.setExternalAuthStatus(false);
+      }
+    );
+
+    this.closeAuthCheckSubscription();
+  }
+
+  /**
+   * Unsubscribe the external authentication subscription
+   * when authentication is no longer blocking.
+   * @private
+   */
+  private closeAuthCheckSubscription() {
+    firstValueFrom(this.authenticationReady$()).then(() => {
+        this.sub.unsubscribe();
+      });
+  }
+
 }