self.addEventListener("install", (event) => {
  event.waitUntil(caches.open("coworker-shell-v1").then((cache) => cache.addAll(["/", "/manifest.webmanifest", "/icon.svg"])));
  self.skipWaiting();
});

self.addEventListener("activate", (event) => {
  event.waitUntil(self.clients.claim());
});

self.addEventListener("fetch", (event) => {
  if (event.request.method !== "GET") return;
  event.respondWith(fetch(event.request).catch(() => caches.match(event.request).then((cached) => cached || caches.match("/"))));
});