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sw.js
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sw.js
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var GHPATH = '/iframe-browser-pwa';
var APP_PREFIX = 'iframebrowser_';
var VERSION = 'version_008';
var URLS = [
`${GHPATH}/`,
`${GHPATH}/index.html`,
`${GHPATH}/css/styles.css`,
`${GHPATH}/img/icon.png`,
`${GHPATH}/js/app.js`
]
var CACHE_NAME = APP_PREFIX + VERSION
self.addEventListener('fetch', function (e) {
console.log('Fetch request : ' + e.request.url);
e.respondWith(
caches.match(e.request).then(function (request) {
if (request) {
console.log('Responding with cache : ' + e.request.url);
return request
} else {
console.log('File is not cached, fetching : ' + e.request.url);
return fetch(e.request)
}
})
)
})
self.addEventListener('install', function (e) {
e.waitUntil(
caches.open(CACHE_NAME).then(function (cache) {
console.log('Installing cache : ' + CACHE_NAME);
return cache.addAll(URLS)
})
)
})
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])
}
}))
})
)
})