56 lines
1.7 KiB
JavaScript
56 lines
1.7 KiB
JavaScript
// Service Worker – Version wird zur Build-Zeit injiziert via Dockerfile
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// Dadurch erkennt der Browser bei jedem Deploy einen neuen SW → Cache-Purge
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const VERSION = '__BUILD_VERSION__'; // wird im Dockerfile ersetzt
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const CACHE_NAME = 'dickendock-' + VERSION;
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self.addEventListener('install', () => {
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self.skipWaiting(); // neuen SW sofort übernehmen
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});
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self.addEventListener('activate', e => {
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e.waitUntil((async () => {
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// alle alten Caches löschen
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const keys = await caches.keys();
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await Promise.all(keys.filter(k => k !== CACHE_NAME).map(k => caches.delete(k)));
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await self.clients.claim();
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// allen offenen Clients sagen: neue Version aktiv → reload
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const clients = await self.clients.matchAll({ type: 'window' });
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clients.forEach(c => c.postMessage({ type: 'SW_ACTIVATED', version: VERSION }));
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})());
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});
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self.addEventListener('fetch', e => {
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const url = new URL(e.request.url);
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// Cross-Origin-Requests nicht abfangen
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if (url.origin !== self.location.origin) return;
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// API immer direkt ans Netz
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if (url.pathname.startsWith('/api/')) {
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e.respondWith(fetch(e.request));
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return;
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}
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// sw.js selbst nie cachen
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if (url.pathname === '/sw.js') {
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e.respondWith(fetch(e.request, { cache: 'no-store' }));
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return;
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}
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// HTML-Navigation: IMMER frisch vom Netzwerk
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if (e.request.mode === 'navigate') {
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e.respondWith(
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fetch(e.request, { cache: 'reload' })
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.catch(() => caches.match('/index.html'))
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);
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return;
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}
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// Same-Origin Assets: durchreichen
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e.respondWith(fetch(e.request).catch(() => caches.match(e.request)));
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});
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self.addEventListener('message', e => {
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if (e.data === 'SKIP_WAITING') self.skipWaiting();
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});
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