72 lines
No EOL
1.9 KiB
JavaScript
72 lines
No EOL
1.9 KiB
JavaScript
// Service Worker for RADICAL PWA
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const CACHE_NAME = 'radical-cache-v1';
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const urlsToCache = [
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'/',
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'/styles.css',
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'https://radical.omar-c29.workers.dev/memes/favicon.jpg',
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'https://fonts.googleapis.com/css2?family=Roboto+Mono:wght@300;400;500;600;700&display=swap'
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];
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// Install event - cache essential resources
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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 opened');
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return cache.addAll(urlsToCache);
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})
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);
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});
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// Fetch event - serve from cache when possible
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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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// Return cached response if found
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if (response) {
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return response;
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}
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// Clone the request - request can only be used once
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const fetchRequest = event.request.clone();
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return fetch(fetchRequest).then(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 - response can only be used once
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const responseToCache = response.clone();
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caches.open(CACHE_NAME).then(cache => {
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// Don't cache API responses
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if (!event.request.url.includes('/api/')) {
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cache.put(event.request, responseToCache);
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}
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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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// Activate event - clean up old caches
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self.addEventListener('activate', event => {
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const cacheWhitelist = [CACHE_NAME];
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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 (cacheWhitelist.indexOf(cacheName) === -1) {
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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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}); |