<%# The name of the cache to store responses in %><%# If the cache name changes DevDocs is assumed to be updated %>const cacheName = '<%= service_worker_cache_name %>';<%# Url's to cache when the service worker is installed %>const urlsToCache = [ '/', '/favicon.ico', '/manifest.json', '<%= service_worker_asset_urls.join "',\n '" %>', '<%= doc_index_urls.join "',\n '" %>',];<%# Set-up the cache %>self.addEventListener('install', event => { self.skipWaiting(); event.waitUntil( caches.open(cacheName).then(cache => cache.addAll(urlsToCache)), );});<%# Remove old caches %>self.addEventListener('activate', event => { event.waitUntil((async () => { const keys = await caches.keys(); const jobs = keys.map(key => key !== cacheName ? caches.delete(key) : Promise.resolve()); return Promise.all(jobs); })());});<%# Handle HTTP requests %>self.addEventListener('fetch', event => { event.respondWith((async () => { const cachedResponse = await caches.match(event.request); if (cachedResponse) return cachedResponse; try { const response = await fetch(event.request); return response; } catch (err) { const url = new URL(event.request.url); const pathname = url.pathname; const filename = pathname.substr(1 + pathname.lastIndexOf('/')).split(/\#|\?/g)[0]; const extensions = ['.html', '.css', '.js', '.json', '.png', '.ico', '.svg', '.xml']; <%# Attempt to return the index page from the cache if the user is visiting a url like devdocs.io/offline or devdocs.io/javascript/global_objects/array/find %> <%# The index page will make sure the correct documentation or a proper offline page is shown %> if (url.origin === location.origin && !extensions.some(ext => filename.endsWith(ext))) { const cachedIndex = await caches.match('/'); if (cachedIndex) return cachedIndex; } throw err; } })());});
<%# The name of the cache to store responses in %>
<%# If the cache name changes DevDocs is assumed to be updated %>
const cacheName = '<%= service_worker_cache_name %>';
<%# Url's to cache when the service worker is installed %>
const urlsToCache = [
'/',
'/favicon.ico',
'/manifest.json',
'<%= service_worker_asset_urls.join "',\n '" %>',
'<%= doc_index_urls.join "',\n '" %>',
];
<%# Set-up the cache %>
self.addEventListener('install', event => {
self.skipWaiting();
event.waitUntil(
caches.open(cacheName).then(cache => cache.addAll(urlsToCache)),
);
});
<%# Remove old caches %>
self.addEventListener('activate', event => {
event.waitUntil((async () => {
const keys = await caches.keys();
const jobs = keys.map(key => key !== cacheName ? caches.delete(key) : Promise.resolve());
return Promise.all(jobs);
})());
});
<%# Handle HTTP requests %>
self.addEventListener('fetch', event => {
event.respondWith((async () => {
const cachedResponse = await caches.match(event.request);
if (cachedResponse) return cachedResponse;
try {
const response = await fetch(event.request);
return response;
} catch (err) {
const url = new URL(event.request.url);
const pathname = url.pathname;
const filename = pathname.substr(1 + pathname.lastIndexOf('/')).split(/\#|\?/g)[0];
const extensions = ['.html', '.css', '.js', '.json', '.png', '.ico', '.svg', '.xml'];
<%# Attempt to return the index page from the cache if the user is visiting a url like devdocs.io/offline or devdocs.io/javascript/global_objects/array/find %>
<%# The index page will make sure the correct documentation or a proper offline page is shown %>
if (url.origin === location.origin && !extensions.some(ext => filename.endsWith(ext))) {
const cachedIndex = await caches.match('/');
if (cachedIndex) return cachedIndex;
}
throw err;
}
})());
});