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