23 lines
881 B
JavaScript
23 lines
881 B
JavaScript
// The service worker is what lets the site be installed as an app. It caches nothing but the
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// offline page: every request still goes to the network, so nobody sees stale bans or ranks.
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const CACHE = "offline-v1";
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const OFFLINE = "/static/offline.html";
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self.addEventListener("install", (e) => {
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e.waitUntil(caches.open(CACHE).then((c) => c.add(OFFLINE)).then(() => self.skipWaiting()));
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});
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self.addEventListener("activate", (e) => {
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e.waitUntil(
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caches.keys()
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.then((keys) => Promise.all(keys.filter((k) => k !== CACHE).map((k) => caches.delete(k))))
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.then(() => self.clients.claim()),
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);
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});
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// Only page loads get the offline page; API calls fail as they always have, and the pages say so.
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self.addEventListener("fetch", (e) => {
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if (e.request.mode !== "navigate") return;
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e.respondWith(fetch(e.request).catch(() => caches.match(OFFLINE)));
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});
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