import './web_push_notifications'; function openSystemCache() { return caches.open('mastodon-system'); } function openWebCache() { return caches.open('mastodon-web'); } function fetchRoot() { return fetch('/', { credentials: 'include' }); } // Cause a new version of a registered Service Worker to replace an existing one // that is already installed, and replace the currently active worker on open pages. self.addEventListener('install', function(event) { event.waitUntil(Promise.all([openWebCache(), fetchRoot()]).then(([cache, root]) => cache.put('/', root))); }); self.addEventListener('activate', function(event) { event.waitUntil(self.clients.claim()); }); self.addEventListener('fetch', function(event) { const url = new URL(event.request.url); if (url.pathname.startsWith('/web/')) { const asyncResponse = fetchRoot(); const asyncCache = openWebCache(); event.respondWith(asyncResponse.then(async response => { if (response.ok) { const cache = await asyncCache; await cache.put('/', response); return response.clone(); } throw null; }).catch(() => asyncCache.then(cache => cache.match('/')))); } else if (url.pathname === '/auth/sign_out') { const asyncResponse = fetch(event.request); const asyncCache = openWebCache(); event.respondWith(asyncResponse.then(async response => { if (response.ok || response.type === 'opaqueredirect') { const cache = await asyncCache; await cache.delete('/'); } return response; })); } else if (process.env.CDN_HOST ? url.host === process.env.CDN_HOST : url.pathname.startsWith('/system/')) { event.respondWith(openSystemCache().then(async cache => { const cached = await cache.match(event.request.url); if (cached === undefined) { const fetched = await fetch(event.request); if (fetched.ok) { await cache.put(event.request.url, fetched.clone()); } return fetched; } return cached; })); } });