npm run serve:ssr funktioniert und Hamburger Menu bug fix

bizmatch/src/app/services/seo.service.ts

@@ -1,4 +1,5 @@
-import { Injectable, inject } from '@angular/core';
+import { Injectable, inject, PLATFORM_ID } from '@angular/core';
+import { isPlatformBrowser } from '@angular/common';
 import { Meta, Title } from '@angular/platform-browser';
 import { Router } from '@angular/router';
 
@@ -19,6 +20,8 @@ export class SeoService {
   private meta = inject(Meta);
   private title = inject(Title);
   private router = inject(Router);
+  private platformId = inject(PLATFORM_ID);
+  private isBrowser = isPlatformBrowser(this.platformId);
 
   private readonly defaultImage = 'https://biz-match.com/assets/images/bizmatch-og-image.jpg';
   private readonly siteName = 'BizMatch';
@@ -109,6 +112,8 @@ export class SeoService {
    * Update canonical URL
    */
   private updateCanonicalUrl(url: string): void {
+    if (!this.isBrowser) return;
+
     let link: HTMLLinkElement | null = document.querySelector('link[rel="canonical"]');
 
     if (link) {
@@ -267,6 +272,8 @@ export class SeoService {
    * Inject JSON-LD structured data into page
    */
   injectStructuredData(schema: object): void {
+    if (!this.isBrowser) return;
+
     // Remove existing schema script
     const existingScript = document.querySelector('script[type="application/ld+json"]');
     if (existingScript) {
@@ -284,6 +291,8 @@ export class SeoService {
    * Clear all structured data
    */
   clearStructuredData(): void {
+    if (!this.isBrowser) return;
+
     const scripts = document.querySelectorAll('script[type="application/ld+json"]');
     scripts.forEach(script => script.remove());
   }
@@ -480,6 +489,8 @@ export class SeoService {
    * Inject multiple structured data schemas
    */
   injectMultipleSchemas(schemas: object[]): void {
+    if (!this.isBrowser) return;
+
     // Remove existing schema scripts
     this.clearStructuredData();
 
@@ -591,6 +602,8 @@ export class SeoService {
    * Inject pagination link elements (rel="next" and rel="prev")
    */
   injectPaginationLinks(baseUrl: string, currentPage: number, totalPages: number): void {
+    if (!this.isBrowser) return;
+
     // Remove existing pagination links
     document.querySelectorAll('link[rel="next"], link[rel="prev"]').forEach(link => link.remove());
 
@@ -615,6 +628,8 @@ export class SeoService {
    * Clear pagination links
    */
   clearPaginationLinks(): void {
+    if (!this.isBrowser) return;
+
     document.querySelectorAll('link[rel="next"], link[rel="prev"]').forEach(link => link.remove());
   }
 }