66 lines
1.9 KiB
JavaScript
66 lines
1.9 KiB
JavaScript
const CACHE_NAME = 'inknote-v2';
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// Install — cache app shell on first load
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self.addEventListener('install', (e) => {
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e.waitUntil(
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caches.open(CACHE_NAME).then(async (cache) => {
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// Cache the main page and manifest
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const urls = ['/', '/manifest.json', '/icon-192.png', '/icon-512.png'];
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for (const url of urls) {
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try { await cache.add(url); } catch (err) { console.warn('[SW] Failed to cache:', url); }
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}
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})
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);
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self.skipWaiting();
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});
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// Activate — clean old caches
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self.addEventListener('activate', (e) => {
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e.waitUntil(
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caches.keys().then(keys => Promise.all(keys.filter(k => k !== CACHE_NAME).map(k => caches.delete(k))))
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);
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self.clients.claim();
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});
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// Fetch handler
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self.addEventListener('fetch', (e) => {
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const url = new URL(e.request.url);
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// Skip API/WebSocket requests entirely — handled by app + IndexedDB
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if (url.pathname.startsWith('/api/') || url.pathname.startsWith('/ws')) return;
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// Skip non-GET requests
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if (e.request.method !== 'GET') return;
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// Navigation (HTML pages) — network-first, fallback to cache
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if (e.request.mode === 'navigate') {
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e.respondWith(
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fetch(e.request)
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.then(r => { const c = r.clone(); caches.open(CACHE_NAME).then(cache => cache.put('/', c)); return r; })
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.catch(() => caches.match('/'))
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);
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return;
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}
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// JS/CSS/images — stale-while-revalidate
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e.respondWith(
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caches.match(e.request).then(cached => {
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const fetchP = fetch(e.request).then(r => {
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if (r.ok && r.type === 'basic') {
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caches.open(CACHE_NAME).then(cache => cache.put(e.request, r.clone()));
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}
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return r;
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}).catch(() => cached);
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return cached || fetchP;
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})
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);
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});
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// Background sync
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self.addEventListener('sync', (e) => {
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if (e.tag === 'sync-changes') {
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e.waitUntil(self.clients.matchAll().then(clients => {
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clients.forEach(c => c.postMessage({ type: 'FLUSH_QUEUE' }));
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}));
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}
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}); |