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sw.js
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35 lines (29 loc) · 679 Bytes
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const version = "v1";
const assets = [
"index.html",
"index.js",
"index.css"
];
self.addEventListener("install", async () => {
const cache = await caches.open(version);
await cache.addAll(assets);
});
self.addEventListener("activate", async () => {
const cacheNames = await caches.keys();
await Promise.all(
cacheNames
.filter((name) => name !== version)
.map((name) => caches.delete(name))
);
});
self.addEventListener("fetch", async (event) => {
const response = networkFirst(event.request);
event.respondWith(response);
});
async function networkFirst(request) {
try {
return await fetch(request);
} catch (e) {
return caches.match(request);
}
}