Cache-first meant users were stuck on old versions until manual cache clear. Network-first fetches live, updates cache, falls back to cache when offline. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
33 lines
978 B
JavaScript
33 lines
978 B
JavaScript
const CACHE = 'ns-v21';
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const PRECACHE = ['/', 'index.html', 'styles.css', 'app.js', 'sw.js', 'manifest.json', 'icon.svg'];
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const SKIP_URLS = ['/rest/stream', '/rest/download', '/config.js'];
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self.addEventListener('install', e => {
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e.waitUntil(caches.open(CACHE).then(c => c.addAll(PRECACHE)));
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self.skipWaiting();
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});
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self.addEventListener('activate', e => {
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e.waitUntil(
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caches.keys().then(keys =>
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Promise.all(keys.filter(k => k !== CACHE).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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self.addEventListener('fetch', e => {
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if (SKIP_URLS.some(u => e.request.url.includes(u))) return;
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e.respondWith(
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fetch(e.request)
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.then(res => {
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if (res.status === 200 && e.request.method === 'GET') {
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const clone = res.clone();
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caches.open(CACHE).then(c => c.put(e.request, clone));
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}
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return res;
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})
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.catch(() => caches.match(e.request).then(r => r || Response.error()))
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);
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});
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