49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
const CACHE_NAME = 'credittracker-v33';
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const ASSETS = [
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'./index.html',
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'./manifest.json',
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'./icon.svg',
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'./icon-maskable.svg'
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];
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// Install: pre-cache all app shell files
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self.addEventListener('install', event => {
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event.waitUntil(
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caches.open(CACHE_NAME).then(cache => cache.addAll(ASSETS))
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);
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self.skipWaiting();
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});
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// Activate: clean up old caches
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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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// Fetch: cache-first for app files, network-first for everything else
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self.addEventListener('fetch', event => {
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// Only handle same-origin GET requests
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if (event.request.method !== 'GET') return;
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event.respondWith(
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caches.match(event.request).then(cached => {
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if (cached) return cached;
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return fetch(event.request).then(response => {
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// Cache successful responses for app assets
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if (response.ok) {
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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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}
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return response;
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});
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}).catch(() => {
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// Offline fallback: return the app shell
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return caches.match('./index.html');
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})
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);
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});
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