78 lines
1.6 KiB
JavaScript
78 lines
1.6 KiB
JavaScript
const CACHE_NAME = "woordjes-v2";
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const OFFLINE_URLS = [
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"/learn.php",
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"/manifest.json",
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"/assets/css/style.css",
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"/assets/js/db.js",
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"/assets/js/offline-engine.js",
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"/assets/js/sync.js"
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];
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/**
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* INSTALL
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* Cache basis assets voor offline gebruik
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*/
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self.addEventListener("install", (event) => {
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event.waitUntil(
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caches.open(CACHE_NAME).then((cache) => {
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return cache.addAll(OFFLINE_URLS);
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})
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);
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self.skipWaiting();
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});
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/**
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* ACTIVATE
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* Oude caches opruimen
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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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return Promise.all(
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keys.map((key) => {
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if (key !== CACHE_NAME) {
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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.clients.claim();
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});
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/**
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* FETCH STRATEGY
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* - HTML/CSS/JS → cache-first
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* - API → nooit cachen (offline engine regelt dit)
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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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// API NIET cachen
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if (url.pathname.startsWith("/api/")) {
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return;
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}
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event.respondWith(
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caches.match(event.request).then((cached) => {
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if (cached) {
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return cached;
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}
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return fetch(event.request).then((response) => {
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const copy = response.clone();
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caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, copy);
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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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}); |