99 lines
2.6 KiB
JavaScript
99 lines
2.6 KiB
JavaScript
var version = "v1.0" + __DATE__;
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var cacheName = "vinlottis";
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var CACHE_NAME = cacheName;
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var CACHE_NAME_API = cacheName + "::api";
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var STATIC_CACHE_URLS = ["/"];
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console.log("Nåværende versjon:", version);
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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(`Sletter mellom-lager på nøkkel ${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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event.waitUntil(
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caches
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.keys()
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.then(keys => keys.filter(key => key !== CACHE_NAME_API))
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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(`Sletter mellom-lager på nøkkel ${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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event.waitUntil(
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caches.open(CACHE_NAME).then(cache => {
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console.log("Legger til cache", cache);
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return cache.addAll(STATIC_CACHE_URLS);
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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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self.skipWaiting();
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event.waitUntil(
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caches.open(CACHE_NAME).then(cache => {
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console.log("Legger til cache", cache);
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return cache.addAll(STATIC_CACHE_URLS);
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})
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);
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});
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self.addEventListener("fetch", event => {
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if (event.request.url.includes("/api/")) {
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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(function() {
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return caches.match(event.request);
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})
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);
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} else {
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event.respondWith(
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caches
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.match(event.request) // check if the request has already been cached
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.then(cached => cached || fetch(event.request)) // otherwise request network
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.then(
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response =>
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staticCache(event.request, response) // put response in cache
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.then(() => response) // resolve promise with the network response
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)
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);
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}
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});
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function staticCache(request, response) {
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if (response.type === "error" || response.type === "opaque") {
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return Promise.resolve(); // do not put in cache network errors
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}
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return caches
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.open(CACHE_NAME)
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.then(cache => cache.put(request, response.clone()));
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}
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function cache(request, response) {
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//console.log(response.type === "error" || response.type === "opaque", request);
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if (response.type === "error" || response.type === "opaque") {
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return response;
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}
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return caches.open(CACHE_NAME_API).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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