Diverse änderungen am Push system

public/sw.js

@@ -2,22 +2,65 @@
 const CACHE_NAME = 'ninjacross-v1';
 const urlsToCache = [
     '/',
-    '/index.html',
-    '/css/leaderboard.css',
-    '/js/leaderboard.js',
-    '/pictures/favicon.ico'
+    '/test-push.html',
+    '/sw.js'
 ];
 
 // Install event
 self.addEventListener('install', function(event) {
+    console.log('Service Worker installing...');
     event.waitUntil(
         caches.open(CACHE_NAME)
             .then(function(cache) {
-                return cache.addAll(urlsToCache);
+                // Add files one by one to handle failures gracefully
+                return Promise.allSettled(
+                    urlsToCache.map(url => 
+                        cache.add(url).catch(err => {
+                            console.warn(`Failed to cache ${url}:`, err);
+                            return null; // Continue with other files
+                        })
+                    )
+                );
+            })
+            .then(() => {
+                console.log('Service Worker installation completed');
+                // Skip waiting to activate immediately
+                return self.skipWaiting();
+            })
+            .catch(err => {
+                console.error('Service Worker installation failed:', err);
+                // Still try to skip waiting
+                return self.skipWaiting();
             })
     );
 });
 
+// Activate event
+self.addEventListener('activate', function(event) {
+    console.log('Service Worker activating...');
+    event.waitUntil(
+        caches.keys().then(function(cacheNames) {
+            return Promise.all(
+                cacheNames.map(function(cacheName) {
+                    if (cacheName !== CACHE_NAME) {
+                        return caches.delete(cacheName);
+                    }
+                })
+            );
+        }).then(() => {
+            // Take control of all clients immediately
+            return self.clients.claim();
+        })
+    );
+});
+
+// Listen for skip waiting message
+self.addEventListener('message', function(event) {
+    if (event.data && event.data.type === 'SKIP_WAITING') {
+        self.skipWaiting();
+    }
+});
+
 // Fetch event
 self.addEventListener('fetch', function(event) {
     event.respondWith(