72e9bce4c5
The SW cache name was hardcoded to 'pinchchat-v1', meaning PWA users would get stale cached assets forever. Now the cache name includes the package version and build timestamp, so each build creates a new cache and old ones are cleaned up on activation. Also adds: - Periodic SW update check (every 30 min) - Auto-reload when new SW version is detected
63 lines
2.0 KiB
JavaScript
63 lines
2.0 KiB
JavaScript
// PinchChat Service Worker — cache static assets for offline/instant load
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const CACHE_NAME = 'pinchchat-__SW_VERSION__';
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// Cache static assets on install
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self.addEventListener('install', (event) => {
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self.skipWaiting();
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});
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// Clean old caches on activate
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self.addEventListener('activate', (event) => {
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event.waitUntil(
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caches.keys().then((keys) =>
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Promise.all(keys.filter((k) => k !== CACHE_NAME).map((k) => caches.delete(k)))
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)
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);
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self.clients.claim();
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});
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// Stale-while-revalidate for static assets, network-first for API/WS
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self.addEventListener('fetch', (event) => {
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const url = new URL(event.request.url);
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// Skip non-GET, WebSocket upgrades, and chrome-extension requests
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if (event.request.method !== 'GET') return;
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if (url.protocol === 'chrome-extension:') return;
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// Don't cache API calls or WebSocket-related requests
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if (url.pathname.startsWith('/api') || url.pathname.startsWith('/ws')) return;
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// For navigation requests (HTML), always go network-first to get latest SPA shell
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if (event.request.mode === 'navigate') {
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event.respondWith(
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fetch(event.request)
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.then((response) => {
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const clone = response.clone();
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caches.open(CACHE_NAME).then((cache) => cache.put(event.request, clone));
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return response;
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})
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.catch(() => caches.match(event.request))
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);
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return;
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}
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// Static assets (JS, CSS, images, fonts): stale-while-revalidate
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if (
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url.pathname.match(/\.(js|css|png|jpg|jpeg|gif|webp|svg|woff2?|ttf|ico|json)$/) ||
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url.pathname.startsWith('/assets/')
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) {
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event.respondWith(
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caches.open(CACHE_NAME).then((cache) =>
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cache.match(event.request).then((cached) => {
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const fetchPromise = fetch(event.request).then((response) => {
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if (response.ok) cache.put(event.request, response.clone());
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return response;
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});
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return cached || fetchPromise;
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})
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)
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);
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return;
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}
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});
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