const CACHE_NAME = 'rsspipe-v1'; self.addEventListener('install', (event) => { self.skipWaiting(); }); self.addEventListener('activate', (event) => { event.waitUntil(self.clients.claim()); }); self.addEventListener('fetch', (event) => { // Let browser fetch normally, can cache static assets if offline if (event.request.method !== 'GET') return; event.respondWith( fetch(event.request).catch(() => { return caches.match(event.request); }) ); });