64 lines
1.5 KiB
JavaScript
64 lines
1.5 KiB
JavaScript
// sw.js - simple cache-first service worker
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const CACHE_NAME = 'lifemgr-cache-v1';
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// List everything needed for offline
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const ASSETS = [
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'/',
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'/index.html',
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'/style.css',
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'/script.js',
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'/manifest.webmanifest',
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'/icons/icon-192.png',
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'/icons/icon-512.png'
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];
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// Install: cache core assets
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self.addEventListener('install', (event) => {
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event.waitUntil(
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caches.open(CACHE_NAME).then((cache) => {
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return cache.addAll(ASSETS);
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})
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);
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self.skipWaiting();
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});
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// Activate: cleanup old caches if you bump the version
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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(
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keys.map((key) => {
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if (key !== CACHE_NAME) {
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return caches.delete(key);
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}
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})
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)
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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 strategy
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self.addEventListener('fetch', (event) => {
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const request = event.request;
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// Only handle GET
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if (request.method !== 'GET') return;
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event.respondWith(
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caches.match(request).then((cached) => {
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// Serve from cache if available, else network
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return (
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cached ||
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fetch(request).catch(() => {
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// Optional: custom offline response for HTML requests
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if (request.headers.get('accept')?.includes('text/html')) {
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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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})
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);
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});
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