// Presence-only service worker: satisfies the "installable" requirement
// (Chrome/Android in particular checks for a controlling SW with a fetch
// handler) without adding an offline cache -- every request just goes to
// the network as normal. Served from / (see app/main.py's /sw.js route)
// so its scope covers the whole app, not just /static/.
self.addEventListener("install", () => self.skipWaiting());
self.addEventListener("activate", (event) => event.waitUntil(self.clients.claim()));
self.addEventListener("fetch", (event) => event.respondWith(fetch(event.request)));