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编辑当前文件:/home/pulsehostuk9/public_html/teafund.pulsehost.co.uk/service-worker.js

/* Tea Fund PWA service worker */
const VERSION = 'v202508121044';
const CORE = [
  '/',
  '/offline.html',
  '/manifest.webmanifest',
  '/assets/icons/favicon.ico',
  '/assets/icons/favicon-16.png',
  '/assets/icons/favicon-32.png',
  '/assets/icons/apple-touch-icon.png',
  '/assets/icons/icon-192.png',
  '/assets/icons/icon-512.png'
];

self.addEventListener('install', event => {
  event.waitUntil(caches.open(VERSION).then(cache => cache.addAll(CORE)));
  self.skipWaiting();
});

self.addEventListener('activate', event => {
  event.waitUntil(caches.keys().then(keys => Promise.all(keys.filter(k => k !== VERSION).map(k => caches.delete(k)))));
  self.clients.claim();
});

self.addEventListener('fetch', event => {
  const req = event.request;
  const url = new URL(req.url);
  // Navigation requests: network-first with offline fallback
  if (req.mode === 'navigate') {
    event.respondWith((async () => {
      try {
        const fresh = await fetch(req);
        const cache = await caches.open(VERSION);
        cache.put(req, fresh.clone());
        return fresh;
      } catch (e) {
        const cache = await caches.open(VERSION);
        const cached = await cache.match(req);
        return cached || cache.match('/offline.html');
      }
    })());
    return;
  }
  // Static assets: cache-first
  if (CORE.includes(url.pathname)) {
    event.respondWith(caches.match(req).then(c => c || fetch(req)));
  }
});