diff --git a/lib/core/src/lib/auth/oidc/auth-config.service.spec.ts b/lib/core/src/lib/auth/oidc/auth-config.service.spec.ts
index 9fca3715156..df3f89f9c4f 100644
--- a/lib/core/src/lib/auth/oidc/auth-config.service.spec.ts
+++ b/lib/core/src/lib/auth/oidc/auth-config.service.spec.ts
@@ -52,7 +52,7 @@ describe('AuthConfigService', () => {
         secret: '',
         implicitFlow: true,
         silentLogin: true,
-        redirectSilentIframeUri: 'http://localhost:3000/assets/silent-refresh.html',
+        redirectSilentIframeUri: 'http://localhost:3000/subfolder/assets/silent-refresh.html',
         redirectUri: '/subfolder',
         redirectUriLogout: '#/logout',
         publicUrls: [
@@ -69,7 +69,7 @@ describe('AuthConfigService', () => {
         secret: '',
         implicitFlow: true,
         silentLogin: true,
-        redirectSilentIframeUri: 'http://localhost:3000/assets/silent-refresh.html',
+        redirectSilentIframeUri: 'http://localhost:3000/subfolder2/assets/silent-refresh.html',
         redirectUri: '/subfolder2',
         redirectUriLogout: '#/logout',
         publicUrls: [
@@ -135,7 +135,7 @@ describe('AuthConfigService', () => {
                 oidc: true,
                 issuer: 'http://localhost:3000/auth/realms/alfresco',
                 redirectUri: 'http://localhost:3000/#/view/authentication-confirmation/?',
-                silentRefreshRedirectUri: 'http://localhost:3000/silent-refresh.html',
+                silentRefreshRedirectUri: 'http://localhost:3000/assets/silent-refresh.html',
                 postLogoutRedirectUri: 'http://localhost:3000/#/logout',
                 clientId: 'fakeClientId',
                 scope: 'openid profile email',
@@ -151,7 +151,7 @@ describe('AuthConfigService', () => {
                 oidc: true,
                 issuer: 'http://localhost:3000/auth/realms/alfresco',
                 redirectUri: 'http://localhost:3000/#/view/authentication-confirmation',
-                silentRefreshRedirectUri: 'http://localhost:3000/silent-refresh.html',
+                silentRefreshRedirectUri: 'http://localhost:3000/assets/silent-refresh.html',
                 postLogoutRedirectUri: 'http://localhost:3000/#/logout',
                 clientId: 'fakeClientId',
                 scope: 'openid profile email',
@@ -182,4 +182,18 @@ describe('AuthConfigService', () => {
             expect(service.getRedirectUri()).toBe(expectedUri);
         });
     });
+
+    describe('silentRefreshRedirectUri', () => {
+        it('should return the silentRefreshRedirectUri with subfolder path', () => {
+            const expectedUri = 'http://localhost:3000/subfolder/assets/silent-refresh.html';
+            spyOnProperty(appConfigService, 'oauth2').and.returnValue(mockAuthConfigSubfolderRedirectUri);
+            expect(service.loadAppConfig().silentRefreshRedirectUri).toBe(expectedUri);
+        });
+
+        it('should return the silentRefreshRedirectUri with subfolder2 path', () => {
+            const expectedUri = 'http://localhost:3000/subfolder2/assets/silent-refresh.html';
+            spyOnProperty(appConfigService, 'oauth2').and.returnValue(mockAuthConfigSubfolder2RedirectUri);
+            expect(service.loadAppConfig().silentRefreshRedirectUri).toBe(expectedUri);
+        });
+    });
 });
diff --git a/lib/core/src/lib/auth/oidc/auth-config.service.ts b/lib/core/src/lib/auth/oidc/auth-config.service.ts
index 55e6c5cdbe7..7c2cc8f2d1f 100644
--- a/lib/core/src/lib/auth/oidc/auth-config.service.ts
+++ b/lib/core/src/lib/auth/oidc/auth-config.service.ts
@@ -58,7 +58,7 @@ export class AuthConfigService {
             oidc: oauth2.implicitFlow || oauth2.codeFlow || false,
             issuer: oauth2.host,
             redirectUri,
-            silentRefreshRedirectUri: `${origin}/silent-refresh.html`,
+            silentRefreshRedirectUri: oauth2.redirectSilentIframeUri,
             postLogoutRedirectUri: `${origin}/${oauth2.redirectUriLogout}`,
             clientId: oauth2.clientId,
             scope: oauth2.scope,
diff --git a/lib/core/src/lib/layout/components/header/header.component.html b/lib/core/src/lib/layout/components/header/header.component.html
index f9dd169ec3e..6e2fc7a4b28 100644
--- a/lib/core/src/lib/layout/components/header/header.component.html
+++ b/lib/core/src/lib/layout/components/header/header.component.html
@@ -1,7 +1,7 @@
 <mat-toolbar
     [color]="color"
     [style.background-color]="color"
-    [style.background-image]="'url(' + backgroundImage + ')'">
+    [style.background-image]="backgroundImage ? 'url(' + backgroundImage + ')' : 'none'">
     <button
         *ngIf="showSidenavToggle && position === 'start'"
         id="adf-sidebar-toggle-start"
diff --git a/lib/core/src/lib/layout/components/header/header.component.spec.ts b/lib/core/src/lib/layout/components/header/header.component.spec.ts
index 0965e3f1704..40d86c41384 100644
--- a/lib/core/src/lib/layout/components/header/header.component.spec.ts
+++ b/lib/core/src/lib/layout/components/header/header.component.spec.ts
@@ -81,6 +81,24 @@ describe('HeaderLayoutComponent', () => {
             expect(await toolbar.getCssValue('background-color')).toBe('rgb(66, 245, 126)');
         });
 
+        it('should background image be set to none if is not provided', async () => {
+            fixture.detectChanges();
+
+            const toolbarHarness = await loader.getHarness(MatToolbarHarness);
+            const toolbar = await toolbarHarness.host();
+            expect(await toolbar.getCssValue('background-image')).toEqual('none');
+        });
+
+        it('should background image be set to none if is provided as empty string', async () => {
+            component.backgroundImage = '';
+
+            fixture.detectChanges();
+
+            const toolbarHarness = await loader.getHarness(MatToolbarHarness);
+            const toolbar = await toolbarHarness.host();
+            expect(await toolbar.getCssValue('background-image')).toEqual('none');
+        });
+
         it('should change background image when provided', async () => {
             component.backgroundImage = '/assets/someImage.png';
             fixture.detectChanges();
diff --git a/lib/core/src/lib/layout/components/header/header.component.ts b/lib/core/src/lib/layout/components/header/header.component.ts
index 6739c691b61..c0fbcf30e9e 100644
--- a/lib/core/src/lib/layout/components/header/header.component.ts
+++ b/lib/core/src/lib/layout/components/header/header.component.ts
@@ -49,7 +49,7 @@ export class HeaderLayoutComponent implements OnInit {
     @Input() color: ThemePalette | string;
 
     /** Path to a background image for the header. */
-    @Input() backgroundImage: string;
+    @Input() backgroundImage = '';
 
     /**
      * Toggles whether the sidenav button will be displayed in the header