51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
var version = "v1.0";
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var cacheName = "::vinlottis";
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var CACHE_NAME = version + cacheName;
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var STATIC_CACHE_URLS = ["/"];
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self.addEventListener("activate", event => {
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event.waitUntil(
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caches
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.keys()
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.then(keys => keys.filter(key => key !== CACHE_NAME))
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.then(keys =>
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Promise.all(
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keys.map(key => {
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console.log(`Deleting cache ${key}`);
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return caches.delete(key);
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})
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)
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)
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);
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});
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self.addEventListener("install", event => {
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console.log("Arbeids arbeideren installerer seg.");
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event.waitUntil(
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caches.open(CACHE_NAME).then(cache => cache.addAll(STATIC_CACHE_URLS))
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);
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});
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self.addEventListener("fetch", event => {
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event.respondWith(
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fetch(event.request)
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.then(response => cache(event.request, response))
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.catch(() => caches.match(event.request))
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);
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});
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function cache(request, response) {
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if (
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response.type === "error" ||
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!(response.url.includes("http:") && response.url.includes("https:")) ||
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response.url == ""
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) {
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return Promise.resolve(response);
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}
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return caches.open(CACHE_NAME).then(cache => {
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cache.put(request, response.clone());
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return response;
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});
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}
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