const CACHE = 'sovereign-v1';
const ASSETS = ['./', './index.html'];
self.addEventListener('install', (e) => { e.waitUntil(caches.open(CACHE).then(c => c.addAll(ASSETS)).then(() => self.skipWaiting())); });
self.addEventListener('activate', (e) => { e.waitUntil(self.clients.claim()); });
self.addEventListener('fetch', (e) => { e.respondWith(caches.match(e.request).then(r => r || fetch(e.request).then(res => { if (res.status === 200) { const clone = res.clone(); caches.open(CACHE).then(c => c.put(e.request, clone)); } return res; }).catch(() => caches.match('./index.html'))); });