https://www.letslist.ai/sw.js

1// Minimal service worker for PWA installability only.
2// Provides "Add to Home Screen" functionality without caching overhead.
3// Version bumped to force update: v3
4
5const VERSION = 'jd-minimal-v3';
6
7// Install: activate immediately
8self.addEventListener('install', () => {
9  console.log(`[SW ${VERSION}] Installing...`);
10  self.skipWaiting();
11});
12
13// Activate: claim all clients and clean up old caches
14self.addEventListener('activate', (event) => {
15  console.log(`[SW ${VERSION}] Activating...`);
16  event.waitUntil(
17    (async () => {
18      // Clean up ALL old caches from previous versions
19      const keys = await caches.keys();
20      await Promise.all(keys.map((key) => caches.delete(key)));
21      await self.clients.claim();
22      console.log(`[SW ${VERSION}] Active and controlling all clients`);
23    })(),
24  );
25});
26
27// Fetch: required for service worker but does nothing
28// All requests pass through to the network naturally
29self.addEventListener('fetch', () => {
30  // Intentionally empty - no interception, no caching
31  // Browser handles all requests natively for maximum performance
32});
33
34// Push notifications support (skeleton for future use)
35self.addEventListener('push', (event) => {
36  if (!event.data) return;
37  try {
38    const data = event.data.json();
39    const title = data.title || 'Notification';
40    const options = {
41      body: data.body,
42      icon: data.icon || '/android-chrome-192x192.png',
43      badge: data.badge || '/favicon-32x32.png',
44      data: data.data || {},
45    };
46    event.waitUntil(self.registration.showNotification(title, options));
47  } catch (err) {
48    console.error('[SW] Push notification error:', err);
49  }
50});
51
52self.addEventListener('notificationclick', (event) => {
53  event.notification.close();
54  const target = (event.notification?.data?.url) || '/';
55  event.waitUntil(self.clients.openWindow(target));
56});