72 lines
1.6 KiB
JavaScript
72 lines
1.6 KiB
JavaScript
const CACHE_NAME = 'vbb-status-v30';
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const urlsToCache = [
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'/',
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'/index.html',
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'/styles.css',
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'/script.js',
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'/manifest.json',
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'/DotMatrix.ttf',
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'/images/favicon.png'
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];
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// Installation
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self.addEventListener('install', event => {
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event.waitUntil(
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caches.open(CACHE_NAME)
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.then(cache => {
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console.log('Cache geöffnet');
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return cache.addAll(urlsToCache);
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})
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);
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self.skipWaiting();
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});
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// Aktivierung
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self.addEventListener('activate', event => {
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event.waitUntil(
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caches.keys().then(cacheNames => {
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return Promise.all(
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cacheNames.map(cacheName => {
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if (cacheName !== CACHE_NAME) {
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console.log('Alter Cache wird gelöscht:', cacheName);
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return caches.delete(cacheName);
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}
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})
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);
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})
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);
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self.clients.claim();
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});
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// Fetch
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self.addEventListener('fetch', event => {
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event.respondWith(
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caches.match(event.request)
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.then(response => {
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// Cache hit - return response
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if (response) {
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return response;
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}
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return fetch(event.request).then(
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response => {
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// Check if valid response
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if (!response || response.status !== 200 || response.type !== 'basic') {
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return response;
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}
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// Clone the response
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const responseToCache = response.clone();
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caches.open(CACHE_NAME)
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.then(cache => {
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cache.put(event.request, responseToCache);
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});
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return response;
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}
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);
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})
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);
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});
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