Fix reference Errors with SSR

Author: atarix83

src/app/core/services/internal-link.service.ts

@@ -1,5 +1,6 @@
 import { Inject, Injectable } from '@angular/core';
 import { NativeWindowRef, NativeWindowService } from './window.service';
+import { isEmpty } from '../../shared/empty.util';
 
 /**
  * LinkService provides utility functions for working with links, such as checking if a link is internal
@@ -22,6 +23,10 @@ export class InternalLinkService {
    * @returns A boolean indicating whether the link is internal.
    */
   public isLinkInternal(link: string): boolean {
+    if (isEmpty(this.currentURL)) {
+      return false;
+    }
+
     // Create a Domain object for the provided link
     const currentDomain = new URL(this.currentURL).hostname;
 
@@ -39,6 +44,9 @@ export class InternalLinkService {
    * @returns The relative path for the given internal link.
    */
   public getRelativePath(link: string): string {
+    if (isEmpty(this.currentURL)) {
+      return link;
+    }
     // Create a Domain object for the provided link
     const currentDomain = new URL(this.currentURL).hostname;