63 lines
1.9 KiB
JavaScript
63 lines
1.9 KiB
JavaScript
const CACHE_NAME = 'trackpull-v1';
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const APP_SHELL = [
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'/',
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'/static/favicon.ico',
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'/static/manifest.json',
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'/static/icons/icon-192x192.png',
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'/static/icons/icon-512x512.png',
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'/offline',
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];
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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 => cache.addAll(APP_SHELL))
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.then(() => self.skipWaiting())
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);
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});
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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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).then(() => self.clients.claim())
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);
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});
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self.addEventListener('fetch', (event) => {
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const url = new URL(event.request.url);
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// API calls: network only
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if (url.pathname.startsWith('/api/')) {
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return;
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}
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// Navigation requests: network first, cache fallback, then offline page
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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).then(r => r || caches.match('/offline')))
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);
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return;
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}
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// Static assets: cache first, network fallback
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if (url.pathname.startsWith('/static/')) {
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event.respondWith(
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caches.match(event.request).then(cached =>
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cached || fetch(event.request).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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)
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);
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return;
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}
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});
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