File size: 1,969 Bytes
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const staticCacheName = 'site-static-v4';
const dynamicCacheName = 'site-dynamic-v4';
const assets = [
'./index.html',
'./style.css',
'./assets/fonts/IndianSignLangage.ttf',
'./assets/fonts/Aclonica-Regular.ttf',
'./assets/fonts/Poppins-Regular.ttf',
'./assets/images/contact-us-option-btn-img.png',
'./assets/images/contribute-option-btn-img.png',
'./assets/images/learn-option-btn-img.png',
'./assets/images/translate-option-btn-img.png',
'./assets/images/sanket-logo.png',
'./assets/images/demo-pfp.png',
];
// install event
self.addEventListener('install', evt => {
//console.log('service worker installed');
evt.waitUntil(
caches.open(staticCacheName).then((cache) => {
console.log('caching shell assets');
cache.addAll(assets);
})
);
});
// activate event
self.addEventListener('activate', evt => {
//console.log('service worker activated');
evt.waitUntil(
caches.keys().then(keys => {
//console.log(keys);
return Promise.all(keys
.filter(key => key !== staticCacheName && key !== dynamicCacheName)
.map(key => caches.delete(key))
);
})
);
});
// fetch event
self.addEventListener('fetch', evt => {
//console.log('fetch event', evt);
evt.respondWith(
caches.match(evt.request).then(cacheRes => {
return cacheRes || fetch(evt.request).then(fetchRes => {
return caches.open(dynamicCacheName).then(cache => {
cache.put(evt.request.url, fetchRes.clone());
// check cached items size
// limitCacheSize(dynamicCacheName, 15);
return fetchRes;
})
});
}).catch(() => {
if (evt.request.url.indexOf('.html') > -1) {
return caches.match('index.html');
}
})
);
});
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