kandil_code 2.1.1

const CACHE = "kandil-cache-v1";
const OFFLINE_URLS = ["/", "/pwa", "/manifest.webmanifest"];

self.addEventListener("install", (event) => {
  event.waitUntil(
    caches.open(CACHE).then((cache) => {
      return cache.addAll(OFFLINE_URLS);
    })
  );
});

self.addEventListener("activate", (event) => {
  event.waitUntil(
    caches.keys().then((keys) =>
      Promise.all(keys.map((key) => key !== CACHE && caches.delete(key)))
    )
  );
});

self.addEventListener("fetch", (event) => {
  event.respondWith(
    caches.match(event.request).then((cached) => {
      return (
        cached ||
        fetch(event.request).then((response) => {
          const copy = response.clone();
          caches.open(CACHE).then((cache) => cache.put(event.request, copy));
          return response;
        })
      );
    })
  );
});