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sw.js
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sw.js
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/* https://gist.github.com/kosamari/7c5d1e8449b2fbc97d372675f16b566e */
var APP_PREFIX = "blitzTricks_"
var VERSION = "v1_0_1"
var CACHE_NAME = APP_PREFIX + VERSION
var URLS = [
"/eBookTricks/",
"/eBookTricks/index.html",
"/eBookTricks/assets/logo.svg",
"/eBookTricks/assets/favicon.ico",
"/eBookTricks/css/styles.css",
"/eBookTricks/css/print.css",
"/eBookTricks/js/script.js"
]
// Respond with cached resources
self.addEventListener("fetch", function (e) {
console.log("fetch request: " + e.request.url)
e.respondWith(
caches.match(e.request).then(function (request) {
return request || fetch(e.request)
})
)
})
// Cache resources
self.addEventListener("install", function (e) {
e.waitUntil(
caches.open(CACHE_NAME).then(function (cache) {
console.log("installing cache: " + CACHE_NAME)
return cache.addAll(URLS)
})
)
})
// Delete outdated caches
self.addEventListener("activate", function (e) {
e.waitUntil(
caches.keys().then(function (keyList) {
var cacheWhitelist = keyList.filter(function (key) {
return key.indexOf(APP_PREFIX)
})
cacheWhitelist.push(CACHE_NAME)
return Promise.all(keyList.map(function (key, i) {
if (cacheWhitelist.indexOf(key) === -1) {
console.log("deleting cache: " + keyList[i] )
return caches.delete(keyList[i])
}
}))
})
)
})