2oz.cc/w

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get web first then cache self.addEventListener('fetch', (event) ⇒ {

event.respondWith(
  fetch(event.request)
    .then((networkResponse) => {
      // Clone the response before caching (it can only be read once)
      return caches.open('dynamic-cache').then((cache) => {
        cache.put(event.request, networkResponse.clone());
        return networkResponse;
      });
    })
    .catch(() => {
      // Fallback to cache if the network request fails (offline)
      return caches.match(event.request);
    })
);

});