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const sw_cache = {
offline: "/offline.html",
default: [
"/index.css",
"/prism.css",
"/index.js",
"/favicon.svg",
"/offline.html",
"/"
],
// eslint-disable-next-line no-undef
store: VERSION,
}
self.addEventListener('install', async event => {
self.skipWaiting()
const precache = async() => {
const cache = await self.caches.open(sw_cache.store);
return cache.addAll(sw_cache.default)
}
event.waitUntil(precache())
})
self.addEventListener('activate', async event => {
const invalidatecache = async() => {
const keys = await self.caches.keys()
Promise.all(
keys.map(key => {
if (key !== sw_cache.store) {
return self.caches.delete(key)
}
}))
}
event.waitUntil(invalidatecache())
})
self.addEventListener('fetch', async event => {
const cache_fetch = async() => {
if (event.request.method != 'GET') {
return
}
if (event.request.url.origin != self.location.origin) {
return
}
const cacheres = await self.caches.match(event.request)
if (cacheres !== undefined) {
return cacheres
}
try {
const response = await self.fetch(event.request)
const cache = await self.caches.open(sw_cache.store)
cache.put(event.request, response.clone())
return response
} catch {
return self.caches.match(sw_cache.offline)
}
}
event.respondWith(cache_fetch())
})
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