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sw.js
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sw.js
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importScripts('sw-cache-polyfill.js');
var CACHE_VERSION = 'app-v1';
var CACHE_FILES = [
'/AndroidXMigrateHelper',
'/AndroidXMigrateHelper/index.html',
'/AndroidXMigrateHelper/assets/scripts/script.js',
'/AndroidXMigrateHelper/assets/scripts/clipboard-copy-element.js',
'/AndroidXMigrateHelper/assets/styles/search.css',
'/AndroidXMigrateHelper/favicon.ico',
'/AndroidXMigrateHelper/assets/manifest.json',
'/AndroidXMigrateHelper/assets/icons/icon-72x72.png',
'/AndroidXMigrateHelper/assets/icons/icon-96x96.png',
'/AndroidXMigrateHelper/assets/icons/icon-128x128.png',
'/AndroidXMigrateHelper/assets/icons/icon-144x144.png',
'/AndroidXMigrateHelper/assets/icons/icon-152x152.png',
'/AndroidXMigrateHelper/assets/icons/icon-180x180.png',
'/AndroidXMigrateHelper/assets/icons/icon-192x192.png',
'/AndroidXMigrateHelper/assets/icons/icon-384x384.png',
'/AndroidXMigrateHelper/assets/icons/icon-512x512.png',
'/AndroidXMigrateHelper/assets/data/androidx-artifact-mapping.json',
'/AndroidXMigrateHelper/assets/data/androidx-class-mapping.json'
];
self.addEventListener('install', function (event) {
event.waitUntil(
caches.open(CACHE_VERSION)
.then(function (cache) {
console.log('Opened cache');
return cache.addAll(CACHE_FILES);
})
);
});
self.addEventListener('fetch', function (event) {
let online = navigator.onLine
if(!online){
event.respondWith(
caches.match(event.request).then(function(res){
if(res){
return res;
}
requestBackend(event);
})
)
}
});
function requestBackend(event){
var url = event.request.clone();
return fetch(url).then(function(res){
//if not a valid response send the error
if(!res || res.status !== 200 || res.type !== 'basic'){
return res;
}
var response = res.clone();
caches.open(CACHE_VERSION).then(function(cache){
cache.put(event.request, response);
});
return res;
})
}
self.addEventListener('activate', function (event) {
event.waitUntil(
caches.keys().then(function(keys){
return Promise.all(keys.map(function(key, i){
if(key !== CACHE_VERSION){
return caches.delete(keys[i]);
}
}))
})
)
});