34 lines
1006 B
JavaScript
34 lines
1006 B
JavaScript
const CACHE_NAME = 'bt-preview-v1'
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const SHELL = ['/', '/gate', '/settings', '/manifest.json', '/icon.svg']
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self.addEventListener('install', (event) => {
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event.waitUntil(
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caches.open(CACHE_NAME).then((cache) => cache.addAll(SHELL)).then(() => self.skipWaiting())
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)
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})
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self.addEventListener('activate', (event) => {
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event.waitUntil(self.clients.claim())
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})
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self.addEventListener('fetch', (event) => {
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const { request } = event
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const url = new URL(request.url)
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// API、图片预览、下载等动态请求走网络，不做缓存
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if (url.pathname.startsWith('/api/')) return
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event.respondWith(
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caches.match(request).then((cached) => {
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if (cached) return cached
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return fetch(request).then((res) => {
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if (request.method === 'GET' && res.status === 200 && res.type === 'basic') {
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const clone = res.clone()
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caches.open(CACHE_NAME).then((cache) => cache.put(request, clone)).catch(() => {})
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}
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return res
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})
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})
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)
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})
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