diff --git a/karma.conf.js b/karma.conf.js
index 24cd067fd1..8418312b1a 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -22,7 +22,7 @@ module.exports = function (config) {
       reports: ['html', 'lcovonly', 'text-summary'],
       fixWebpackSourcePaths: true
     },
-    reporters: ['mocha', 'kjhtml'],
+    reporters: ['mocha', 'kjhtml', 'coverage-istanbul'],
     mochaReporter: {
       ignoreSkipped: true,
       output: 'autowatch'
diff --git a/src/app/community-list-page/community-list/community-list.component.html b/src/app/community-list-page/community-list/community-list.component.html
index 68df5dc15f..f441dfa36e 100644
--- a/src/app/community-list-page/community-list/community-list.component.html
+++ b/src/app/community-list-page/community-list/community-list.component.html
@@ -8,7 +8,7 @@
         <span class="fa fa-chevron-right invisible" aria-hidden="true"></span>
       </button>
       <div class="align-middle pt-2">
-        <a *ngIf="node!==loadingNode" [routerLink]="[][]" (click)="getNextPage(node)"
+        <a *ngIf="node!==loadingNode" [routerLink]="" (click)="getNextPage(node)"
            class="btn btn-outline-primary btn-sm" role="button">
            <i class="fas fa-angle-down"></i> {{ 'communityList.showMore' | translate }}
         </a>
diff --git a/src/app/item-page/simple/field-components/file-section/file-section.component.html b/src/app/item-page/simple/field-components/file-section/file-section.component.html
index c043de4253..3d093f83c9 100644
--- a/src/app/item-page/simple/field-components/file-section/file-section.component.html
+++ b/src/app/item-page/simple/field-components/file-section/file-section.component.html
@@ -8,10 +8,10 @@
       </ds-file-download-link>
       <ds-loading *ngIf="isLoading" message="{{'loading.default' | translate}}" [showMessage]="false"></ds-loading>
       <div *ngIf="!isLastPage" class="mt-1" id="view-more">
-        <a class="bitstream-view-more btn btn-outline-secondary btn-sm" [routerLink]="[]" (click)="getNextPage()">{{'item.page.bitstreams.view-more' | translate}}</a>
+        <a class="bitstream-view-more btn btn-outline-secondary btn-sm" [routerLink]="" (click)="getNextPage()">{{'item.page.bitstreams.view-more' | translate}}</a>
       </div>
       <div *ngIf="isLastPage && currentPage != 1" class="mt-1" id="collapse">
-        <a class="bitstream-collapse btn btn-outline-secondary btn-sm" [routerLink]="[]" (click)="currentPage = undefined; getNextPage();">{{'item.page.bitstreams.collapse' | translate}}</a>
+        <a class="bitstream-collapse btn btn-outline-secondary btn-sm" [routerLink]="" (click)="currentPage = undefined; getNextPage();">{{'item.page.bitstreams.collapse' | translate}}</a>
       </div>
     </div>
   </ds-metadata-field-wrapper>
diff --git a/src/app/item-page/simple/metadata-representation-list/metadata-representation-list.component.html b/src/app/item-page/simple/metadata-representation-list/metadata-representation-list.component.html
index 7da863febd..d1281f450a 100644
--- a/src/app/item-page/simple/metadata-representation-list/metadata-representation-list.component.html
+++ b/src/app/item-page/simple/metadata-representation-list/metadata-representation-list.component.html
@@ -7,11 +7,11 @@
       <ds-loading *ngIf="(i + 1) === objects.length && (i > 0) && (!representations || representations?.length === 0)" message="{{'loading.default' | translate}}"></ds-loading>
       <div class="d-inline-block w-100 mt-2" *ngIf="(i + 1) === objects.length && representations?.length > 0">
         <div *ngIf="(objects.length * incrementBy) < total" class="float-left">
-          <a [routerLink]="[]" (click)="increase()">{{'item.page.related-items.view-more' |
+          <a [routerLink]="" (click)="increase()">{{'item.page.related-items.view-more' |
             translate:{ amount: (total - (objects.length * incrementBy) < incrementBy) ? total - (objects.length * incrementBy) : incrementBy } }}</a>
         </div>
         <div *ngIf="objects.length > 1" class="float-right">
-          <a [routerLink]="[]" (click)="decrease()">{{'item.page.related-items.view-less' |
+          <a [routerLink]="" (click)="decrease()">{{'item.page.related-items.view-less' |
             translate:{ amount: representations?.length } }}</a>
         </div>
       </div>
diff --git a/src/app/item-page/simple/related-items/related-items.component.html b/src/app/item-page/simple/related-items/related-items.component.html
index cede6f1d71..11cedc4040 100644
--- a/src/app/item-page/simple/related-items/related-items.component.html
+++ b/src/app/item-page/simple/related-items/related-items.component.html
@@ -7,11 +7,11 @@
       <ds-loading *ngIf="(i + 1) === objects.length && (itemsRD || i > 0) && !(itemsRD?.hasSucceeded && itemsRD?.payload && itemsRD?.payload?.page?.length > 0)" message="{{'loading.default' | translate}}"></ds-loading>
       <div class="d-inline-block w-100 mt-2" *ngIf="(i + 1) === objects.length && itemsRD?.payload?.page?.length > 0">
         <div *ngIf="itemsRD?.payload?.totalPages > objects.length" class="float-left" id="view-more">
-          <a [routerLink]="[]" (click)="increase()">{{'item.page.related-items.view-more' |
+          <a [routerLink]="" (click)="increase()">{{'item.page.related-items.view-more' |
             translate:{ amount: (itemsRD?.payload?.totalElements - (incrementBy * objects.length) < incrementBy) ? itemsRD?.payload?.totalElements - (incrementBy * objects.length) : incrementBy } }}</a>
         </div>
         <div *ngIf="objects.length > 1" class="float-right" id="view-less">
-          <a [routerLink]="[]" (click)="decrease()">{{'item.page.related-items.view-less' |
+          <a [routerLink]="" (click)="decrease()">{{'item.page.related-items.view-less' |
             translate:{ amount: itemsRD?.payload?.page?.length } }}</a>
         </div>
       </div>
diff --git a/src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-vocabulary.component.ts b/src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-vocabulary.component.ts
index e277648b39..4c24443633 100644
--- a/src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-vocabulary.component.ts
+++ b/src/app/shared/form/builder/ds-dynamic-form-ui/models/dynamic-vocabulary.component.ts
@@ -28,9 +28,9 @@ export abstract class DsDynamicVocabularyComponent extends DynamicFormControlCom
   @Input() abstract group: FormGroup;
   @Input() abstract model: DsDynamicInputModel;
 
-  @Output() abstract blur: EventEmitter<any> = new EventEmitter<any>();
-  @Output() abstract change: EventEmitter<any> = new EventEmitter<any>();
-  @Output() abstract focus: EventEmitter<any> = new EventEmitter<any>();
+  @Output() abstract blur: EventEmitter<any>;
+  @Output() abstract change: EventEmitter<any>;
+  @Output() abstract focus: EventEmitter<any>;
 
   public abstract pageInfo: PageInfo;
 
diff --git a/src/app/shared/object-list/browse-entry-list-element/browse-entry-list-element.component.html b/src/app/shared/object-list/browse-entry-list-element/browse-entry-list-element.component.html
index 1c5b96df4b..8577ee654c 100644
--- a/src/app/shared/object-list/browse-entry-list-element/browse-entry-list-element.component.html
+++ b/src/app/shared/object-list/browse-entry-list-element/browse-entry-list-element.component.html
@@ -1,5 +1,5 @@
 <div class="d-flex flex-row">
-    <a *ngIf="linkType != linkTypes.None" [target]="(linkType == linkTypes.ExternalLink) ? '_blank' : '_self'" rel="noopener noreferrer" [routerLink]="[][]" [queryParams]="getQueryParams()" [queryParamsHandling]="'merge'" class="lead">
+    <a *ngIf="linkType != linkTypes.None" [target]="(linkType == linkTypes.ExternalLink) ? '_blank' : '_self'" rel="noopener noreferrer" [routerLink]="" [queryParams]="getQueryParams()" [queryParamsHandling]="'merge'" class="lead">
         {{object.value}}
     </a>
     <span *ngIf="linkType == linkTypes.None" class="lead">
diff --git a/src/app/shared/starts-with/text/starts-with-text.component.html b/src/app/shared/starts-with/text/starts-with-text.component.html
index 7a93adf7ac..ff808004e4 100644
--- a/src/app/shared/starts-with/text/starts-with-text.component.html
+++ b/src/app/shared/starts-with/text/starts-with-text.component.html
@@ -3,7 +3,7 @@
     <div class="col-12 d-none d-sm-inline-block">
       <ul class="list-inline">
         <li class="list-inline-item" *ngFor="let option of startsWithOptions">
-          <a [routerLink]="[]" (click)="setStartsWith(option)">{{option}}</a>
+          <a [routerLink]="" (click)="setStartsWith(option)">{{option}}</a>
         </li>
       </ul>
     </div>