const CACHE = 'safeaccess-v1';
const ASSETS = ['/', '/index.html', '/manifest.json'];

self.addEventListener('install', e => {
  e.waitUntil(caches.open(CACHE).then(c => c.addAll(ASSETS)));
});

self.addEventListener('fetch', e => {
  e.respondWith(
    caches.match(e.request).then(r => r || fetch(e.request)).catch(() => caches.match('/index.html'))
  );
});