34 lines
1.6 KiB
JavaScript
34 lines
1.6 KiB
JavaScript
const CACHE = 'gree-controller-__GREE_ASSET_CACHE__';
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const SCOPE = new URL(self.registration.scope).pathname.replace(/\/$/, '');
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const path = value => `${SCOPE}${value.startsWith('/') ? value : `/${value}`}` || '/';
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const ASSETS = [path('__GREE_STYLES_ASSET__'), path('__GREE_APP_ASSET__'), path('__GREE_THEME_INIT_ASSET__'), path('__GREE_LANG_INIT_ASSET__'), path('/favicon.svg'), path('/manifest.webmanifest')];
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self.addEventListener('install', event => event.waitUntil(caches.open(CACHE).then(cache => cache.addAll(ASSETS)).then(() => self.skipWaiting())));
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self.addEventListener('activate', event => event.waitUntil(caches.keys().then(keys => Promise.all(keys.filter(key => key !== CACHE).map(key => caches.delete(key)))).then(() => self.clients.claim())));
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self.addEventListener('fetch', event => {
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const url = new URL(event.request.url);
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if (
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event.request.method !== 'GET'
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|| (url.protocol !== 'http:' && url.protocol !== 'https:')
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|| url.origin !== self.location.origin
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|| url.pathname.startsWith(path('/api/'))
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|| url.pathname.startsWith(path('/lang/'))
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|| event.request.mode === 'navigate'
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) return;
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event.respondWith((async () => {
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const cached = await caches.match(event.request);
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if (cached) return cached;
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const response = await fetch(event.request);
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if (response.ok && response.type === 'basic') {
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try {
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const cache = await caches.open(CACHE);
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await cache.put(event.request, response.clone());
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} catch (_) {
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// Cache failures must not break the network response.
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}
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}
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return response;
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})());
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});
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