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sw.js
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sw.js
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const STATIC_CACHE_NAME = 'static-cache-v1.2';
const INMUTABLE_CACHE_NAME = 'inmutable-cache-v1.1';
const DYNAMIC_CACHE_NAME = 'dynamic-cache-v1.1';
const ROOT_PATH = "pouchdb"
const cleanCache = (cacheName, limitItems) => {
caches.open(cacheName).then((cache) => {
return cache.keys().then((keys) => {
if (keys.length > limitItems) {
cache.delete(keys[0]).then(cleanCache(cacheName, limitItems));
}
});
});
};
self.addEventListener('install', (event) => {
const respCache = caches.open(STATIC_CACHE_NAME).then((cache) => {
return cache.addAll([
'/pouchdb/',
'/pouchdb/index.html',
'/pouchdb/style/base.css',
'/pouchdb/style/bg.png',
'/pouchdb/style/plain_sign_in_blue.png',
'/pouchdb/images/icons/android-launchericon-72-72.png',
'/pouchdb/images/icons/android-launchericon-96-96.png',
'/pouchdb/images/icons/android-launchericon-144-144.png',
'/pouchdb/images/icons/android-launchericon-192-192.png',
'/pouchdb/images/icons/android-launchericon-512-512.png',
'/pouchdb/manifest.json',
]);
});
const respCacheInmutable = caches.open(INMUTABLE_CACHE_NAME).then((cache) => {
return cache.addAll([
'https://cdn.jsdelivr.net/npm/[email protected]/dist/pouchdb.min.js',
]);
});
event.waitUntil(Promise.all([respCache, respCacheInmutable]));
});
self.addEventListener('activate', (event) =>{
const proDelete = caches.keys().then(cachesItems =>{
cachesItems.forEach(element =>{
if(element !== STATIC_CACHE_NAME && element.includes('static')){
return caches.delete(element)
}
})
})
event.waitUntil(Promise.all([proDelete]));
})
self.addEventListener('fetch', (event) => {
const resp = caches.match(event.request).then((respCache) => {
if (respCache) {
return respCache;
}
return fetch(event.request).then((respWeb) => {
caches.open(DYNAMIC_CACHE_NAME).then((cache) => {
cache.put(event.request, respWeb);
cleanCache(DYNAMIC_CACHE_NAME, 10);
});
return respWeb.clone();
}).catch((err) => {
});
});
event.respondWith(resp);
});