diff --git a/frontend/app-preview/src/components/AppBarConfig/AppPreviewBarConfig.tsx b/frontend/app-preview/src/components/AppBarConfig/AppPreviewBarConfig.tsx
index a94ab5dba22..a5579ddcdfa 100644
--- a/frontend/app-preview/src/components/AppBarConfig/AppPreviewBarConfig.tsx
+++ b/frontend/app-preview/src/components/AppBarConfig/AppPreviewBarConfig.tsx
@@ -102,7 +102,7 @@ export const appPreviewButtonActions = (
   instanceId: string,
 ): AltinnButtonActionItem[] => {
   const packagesRouter = new PackagesRouter({ org, app });
-  const subUrl = `?layout=${window.localStorage.getItem(instanceId)}`;
+  const queryParams = `?layout=${window.localStorage.getItem(instanceId)}`;
 
   const action: AltinnButtonActionItem[] = [
     {
@@ -110,7 +110,7 @@ export const appPreviewButtonActions = (
       menuKey: TopBarMenu.Preview,
       buttonVariant: 'secondary',
       headerButtonsClasses: classes.backToEditorBtn,
-      handleClick: () => packagesRouter.navigateToPackage('editorUiEditor', subUrl),
+      handleClick: () => packagesRouter.navigateToPackage('editorUiEditor', queryParams),
     },
   ];
   return action;
diff --git a/frontend/packages/shared/src/navigation/PackagesRouter/PackagesRouter.test.ts b/frontend/packages/shared/src/navigation/PackagesRouter/PackagesRouter.test.ts
index c6204cfd3a3..a7930f5a518 100644
--- a/frontend/packages/shared/src/navigation/PackagesRouter/PackagesRouter.test.ts
+++ b/frontend/packages/shared/src/navigation/PackagesRouter/PackagesRouter.test.ts
@@ -6,7 +6,7 @@ const mockApp: string = 'app';
 describe('PackagesRouter', () => {
   describe('constructor', () => {
     it('should default to empty strings if app and org are not provided', () => {
-      const routerWithoutParams = new PackagesRouter({});
+      const routerWithoutParams = new PackagesRouter();
       expect(routerWithoutParams['app']).toEqual('');
       expect(routerWithoutParams['org']).toEqual('');
     });
diff --git a/frontend/packages/shared/src/navigation/PackagesRouter/PackagesRouter.ts b/frontend/packages/shared/src/navigation/PackagesRouter/PackagesRouter.ts
index 9e2a1207761..5f6515aa770 100644
--- a/frontend/packages/shared/src/navigation/PackagesRouter/PackagesRouter.ts
+++ b/frontend/packages/shared/src/navigation/PackagesRouter/PackagesRouter.ts
@@ -22,9 +22,9 @@ export class PackagesRouter {
   private app: string;
   private org: string;
 
-  constructor(private paramsOptions: ParamsOptions) {
-    this.app = this.paramsOptions.app ?? '';
-    this.org = this.paramsOptions.org ?? '';
+  constructor(private paramsOptions?: ParamsOptions) {
+    this.app = this.paramsOptions?.app ?? '';
+    this.org = this.paramsOptions?.org ?? '';
   }
 
   public navigateToPackage(packageRoute: PackagesRoute, queryParams?: string): void {