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sw.js
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sw.js
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self.addEventListener('fetch', function(event) {
event.respondWith(caches.open('cache').then(function(cache) {
return cache.match(event.request).then(function(response) {
// console.log("cache request: " + event.request.url);
var fetchPromise = fetch(event.request).then(function(networkResponse) {
// if we got a response from the cache, update the cache
// console.log("fetch completed: " + event.request.url, networkResponse);
if (networkResponse) {
// console.debug("updated cached page: " + event.request.url, networkResponse);
cache.put(event.request, networkResponse.clone());}
return networkResponse;
}, function (event) {
// rejected promise - just ignore it, we're offline!
// console.log("Error in fetch()", event);
event.waitUntil(
caches.open('cache').then(function(cache) {
// our cache is named *cache* in the caches.open() above
return cache.addAll
([
//cache.addAll(), takes a list of URLs, then fetches them from the server
// and adds the response to the cache.
// add your entire site to the cache- as in the code below; for offline access
// If you have some build process for your site, perhaps that could
// generate the list of possible URLs that a user might load.
'/', // do not remove this
'/index.html', //default
'/index.html?homescreen=1', //default
'/?homescreen=1', //default
'/assets/css/main.css',// configure as by your site ; just an example
'/images/*',// choose images to keep offline; just an example
// Do not replace/delete/edit the service-worker.js/ and manifest.js paths below
'/service-worker.js',
'/manifest.js',
//These are links to the extenal social media buttons that should be cached;
// we have used twitter's as an example
// 'https://platform.twitter.com/widgets.js',
]);
})
);
});
// respond from the cache, or the network
return response || fetchPromise;
});
}));
});
self.addEventListener('install', function(event) {
// The promise that skipWaiting() returns can be safely ignored.
self.skipWaiting();
console.log("Latest version installed!");
});