Add files via upload

manifest.json

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+{
+  "name": "VBB Netz Status",
+  "short_name": "VBB Status",
+  "description": "Echtzeit-Abfahrtsmonitor für den Verkehrsverbund Berlin-Brandenburg - by Aaron K.",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#000000",
+  "theme_color": "#000000",
+  "orientation": "portrait",
+  "icons": [
+    {
+      "src": "images/favicon.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any maskable"
+    },
+    {
+      "src": "images/favicon.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any maskable"
+    }
+  ],
+  "categories": ["travel", "navigation"],
+  "lang": "de-DE"
+}

service-worker.js

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+const CACHE_NAME = 'vbb-status-v3';
+const urlsToCache = [
+  '/',
+  '/index.html',
+  '/manifest.json',
+  '/DotMatrix.ttf',
+  '/images/favicon.png'
+];
+
+// Installation
+self.addEventListener('install', event => {
+  event.waitUntil(
+    caches.open(CACHE_NAME)
+      .then(cache => {
+        console.log('Cache geöffnet');
+        return cache.addAll(urlsToCache);
+      })
+  );
+  self.skipWaiting();
+});
+
+// Aktivierung
+self.addEventListener('activate', event => {
+  event.waitUntil(
+    caches.keys().then(cacheNames => {
+      return Promise.all(
+        cacheNames.map(cacheName => {
+          if (cacheName !== CACHE_NAME) {
+            console.log('Alter Cache wird gelöscht:', cacheName);
+            return caches.delete(cacheName);
+          }
+        })
+      );
+    })
+  );
+  self.clients.claim();
+});
+
+// Fetch
+self.addEventListener('fetch', event => {
+  event.respondWith(
+    caches.match(event.request)
+      .then(response => {
+        // Cache hit - return response
+        if (response) {
+          return response;
+        }
+
+        return fetch(event.request).then(
+          response => {
+            // Check if valid response
+            if (!response || response.status !== 200 || response.type !== 'basic') {
+              return response;
+            }
+
+            // Clone the response
+            const responseToCache = response.clone();
+
+            caches.open(CACHE_NAME)
+              .then(cache => {
+                cache.put(event.request, responseToCache);
+              });
+
+            return response;
+          }
+        );
+      })
+  );
+});