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var APP_PREFIX = 'microbitgamepad' // Identifier for this app (this needs to be consistent across every cache update)
var VERSION = '1.0.3' // Version of the off-line cache (change this value everytime you want to update cache)
var CACHE_NAME = APP_PREFIX + VERSION
var URLS = ['/microbit-gamepad/','/microbit-gamepad/fa-brands-400.04246ac6.woff','/microbit-gamepad/fa-brands-400.a1db9459.woff2','/microbit-gamepad/fa-brands-400.ac88be85.svg','/microbit-gamepad/fa-brands-400.ae1da9aa.eot','/microbit-gamepad/fa-brands-400.e8eab21c.ttf','/microbit-gamepad/fa-regular-400.4f946da8.woff','/microbit-gamepad/fa-regular-400.6adc9fcd.eot','/microbit-gamepad/fa-regular-400.6e35f891.woff2','/microbit-gamepad/fa-regular-400.a215af91.ttf','/microbit-gamepad/fa-regular-400.ed807156.svg','/microbit-gamepad/fa-solid-900.88a6089c.woff','/microbit-gamepad/fa-solid-900.ab906712.woff2','/microbit-gamepad/fa-solid-900.e5b19c09.svg','/microbit-gamepad/fa-solid-900.ec16851e.ttf','/microbit-gamepad/fa-solid-900.ef18b3bb.eot','/microbit-gamepad/index.html','/microbit-gamepad/main.fa7f93a2.js','/microbit-gamepad/main.fa7f93a2.js.map','/microbit-gamepad/maskable_icon_x128.ae1e74f9.png','/microbit-gamepad/maskable_icon_x144.fc14e37c.png','/microbit-gamepad/maskable_icon_x152.ce6c1441.png','/microbit-gamepad/maskable_icon_x384.1af8edb2.png','/microbit-gamepad/maskable_icon_x512.a9ac38fa.png','/microbit-gamepad/maskable_icon_x72.b43d35ec.png','/microbit-gamepad/maskable_icon_x96.e03bc2e8.png','/microbit-gamepad/pwa-192x192.b3dbd8bb.png','/microbit-gamepad/pwa-512x512.b27071b7.png','/microbit-gamepad/service-worker.js','/microbit-gamepad/styles.ac699ce3.css','/microbit-gamepad/styles.ac699ce3.css.map'] // This will be replaced by the deploy-script
// 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) {
if (request) { // if cache is available, respond with cache
console.log('responding with cache : ' + e.request.url)
return request
} else { // if there are no cache, try fetching request
console.log('file is not cached, fetching : ' + e.request.url)
return fetch(e.request)
}
// You can omit if/else for console.log & put one line below like this too.
// 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) {
// `keyList` contains all cache names under your username.github.io
// filter out ones that has this app prefix to create white list
var cacheWhitelist = keyList.filter(function (key) {
return key.indexOf(APP_PREFIX)
})
// add current cache name to white list
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])
}
}))
})
)
})
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