23 lines
985 B
JavaScript
23 lines
985 B
JavaScript
const CACHE = "balance-shell-v2";
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const SHELL = ["/", "/styles.css", "/app.js", "/icon.svg", "/manifest.webmanifest"];
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self.addEventListener("install", event => {
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event.waitUntil(caches.open(CACHE).then(cache => cache.addAll(SHELL)));
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self.skipWaiting();
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});
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self.addEventListener("activate", event => {
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event.waitUntil(caches.keys().then(keys => Promise.all(keys.filter(key => key !== CACHE).map(key => caches.delete(key)))));
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self.clients.claim();
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});
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self.addEventListener("fetch", event => {
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const url = new URL(event.request.url);
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if (event.request.method !== "GET" || url.origin !== self.location.origin || url.pathname.startsWith("/v1/") || url.pathname === "/health") return;
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event.respondWith(fetch(event.request).then(response => {
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const copy = response.clone();
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caches.open(CACHE).then(cache => cache.put(event.request, copy));
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return response;
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}).catch(() => caches.match(event.request).then(response => response || caches.match("/"))));
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});
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