45 lines
1.1 KiB
JavaScript
45 lines
1.1 KiB
JavaScript
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const CACHE_NAME = "polyweather-v1";
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const STATIC_ASSETS = ["/_next/", "/favicon"];
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self.addEventListener("install", (event) => {
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event.waitUntil(self.skipWaiting());
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});
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self.addEventListener("activate", (event) => {
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event.waitUntil(
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caches.keys().then((keys) =>
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Promise.all(
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keys.filter((key) => key !== CACHE_NAME).map((key) => caches.delete(key)),
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),
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),
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);
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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 (STATIC_ASSETS.some((prefix) => url.pathname.startsWith(prefix))) {
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event.respondWith(
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caches.open(CACHE_NAME).then((cache) =>
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cache.match(event.request).then(
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(cached) =>
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cached ||
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fetch(event.request).then((response) => {
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if (response.ok) {
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cache.put(event.request, response.clone());
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}
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return response;
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}),
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),
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),
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);
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return;
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}
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event.respondWith(
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fetch(event.request).catch(() =>
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caches.match(event.request).then((cached) => cached || Response.error()),
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),
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);
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});
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