/
sw.js
99 lines (91 loc) · 2.57 KB
/
sw.js
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const version = 'v2';
const assetsCache = `assets-${version}`;
const coreCacheurls = [
'uikit.min.css',
'app.js',
'/index.html',
'idb.js',
'uikit.min.js'
];
const addToCache = (cacheName, req, res) =>
caches.open(cacheName).then(cache => {
cache.put(req, res);
});
self.addEventListener('install', event => {
event.waitUntil(
caches.open(assetsCache)
.then(cache => {
cache.addAll(coreCacheurls)
.then(() => {
console.log('Cached')
})
})
)
});
self.addEventListener('fetch', (event) => {
const request = event.request;
const headers = request.headers.get('Accept');
const requestUrl = new URL(request.url);
/*
Non HTML requests
*/
if (headers.indexOf('text/html') === -1) {
// Don't cache currencyconverterapi urls
if (requestUrl.hostname === 'free.currencyconverterapi.com') {
return fetch(request);
}
event.respondWith(
caches.match(request).then(response => {
return response || fetch(request).then(res => {
addToCache(assetsCache, request, res.clone());
return res;
})
})
)
}
/*
HTML Requests
*/
if (headers.indexOf('text/html') !== -1) {
//Page Skeleton
if (requestUrl.pathname === '/') {
return event.respondWith(caches.match('/index.html').then(res => {
return res || fetch(request);
}))
} else {
event.respondWith(
caches.match(request).then(response => {
return response || fetch(request).then(res => {
addToCache(assetsCache, request, res.clone());
return res;
})
})
)
}
}
});
//
self.addEventListener('message', event => {
if (event.data.action === 'skipWaiting') {
return self.skipWaiting()
}
});
self.addEventListener('activate', event => {
event.waitUntil(
caches.keys().then(
cachesNames => {
return Promise.all(
cachesNames
.filter((cacheName) => {
return !cacheName.endsWith(version)
})
.map(cacheName => {
return caches.delete(cacheName)
})
)
}
).then(() => {
self.clients.claim()
})
)
});