Sisu Saviya Initiative

1self.addEventListener('fetch', (event) => {
2  event.respondWith(
3    caches.match(event.request).then((cached) => {
4      // Return cached response immediately
5      if (cached) return cached;
6      
7      // Fetch from network with timeout
8      return fetch(event.request, {
9        signal: AbortSignal.timeout(5000)
10      })
11      .then((response) => {
12        // Cache successful responses
13        if (response.ok) {
14          const clone = response.clone();
15          caches.open('v1').then((cache) => {
16            cache.put(event.request, clone);
17          });
18        }
19        return response;
20      })
21      .catch(() => {
22        // Return offline fallback
23        return caches.match('/offline.html');
24      });
25    })
26  );
27});