'use strict'; Object.defineProperty(exports, "__esModule", { value: true }); exports.default = register; exports.unregister = unregister; // In production, we register a service worker to serve assets from local cache. // This lets the app load faster on subsequent visits in production, and gives // it offline capabilities. However, it also means that developers (and users) // will only see deployed updates on the "N+1" visit to a page, since previously // cached resources are updated in the background. // To learn more about the benefits of this model, read https://goo.gl/KwvDNy. // This link also includes instructions on opting out of this behavior. var isLocalhost = Boolean(window.location.hostname === 'localhost' || // [::1] is the IPv6 localhost address. window.location.hostname === '[::1]' || // 127.0.0.1/8 is considered localhost for IPv4. window.location.hostname.match(/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/)); function register() { if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) { // The URL constructor is available in all browsers that support SW. var publicUrl = new URL(process.env.PUBLIC_URL, window.location); if (publicUrl.origin !== window.location.origin) { // Our service worker won't work if PUBLIC_URL is on a different origin // from what our page is served on. This might happen if a CDN is used to // serve assets; see https://github.com/facebookincubator/create-react-app/issues/2374 return; } window.addEventListener('load', function () { var swUrl = process.env.PUBLIC_URL + '/service-worker.js'; if (isLocalhost) { // This is running on localhost. Lets check if a service worker still exists or not. checkValidServiceWorker(swUrl); // Add some additional logging to localhost, pointing developers to the // service worker/PWA documentation. navigator.serviceWorker.ready.then(function () { console.log('This web app is being served cache-first by a service ' + 'worker. To learn more, visit https://goo.gl/SC7cgQ'); }); } else { // Is not local host. Just register service worker registerValidSW(swUrl); } }); } } function registerValidSW(swUrl) { navigator.serviceWorker.register(swUrl).then(function (registration) { registration.onupdatefound = function () { var installingWorker = registration.installing; installingWorker.onstatechange = function () { if (installingWorker.state === 'installed') { if (navigator.serviceWorker.controller) { // At this point, the old content will have been purged and // the fresh content will have been added to the cache. // It's the perfect time to display a "New content is // available; please refresh." message in your web app. console.log('New content is available; please refresh.'); } else { // At this point, everything has been precached. // It's the perfect time to display a // "Content is cached for offline use." message. console.log('Content is cached for offline use.'); } } }; }; }).catch(function (error) { console.error('Error during service worker registration:', error); }); } function checkValidServiceWorker(swUrl) { // Check if the service worker can be found. If it can't reload the page. fetch(swUrl).then(function (response) { // Ensure service worker exists, and that we really are getting a JS file. if (response.status === 404 || response.headers.get('content-type').indexOf('javascript') === -1) { // No service worker found. Probably a different app. Reload the page. navigator.serviceWorker.ready.then(function (registration) { registration.unregister().then(function () { window.location.reload(); }); }); } else { // Service worker found. Proceed as normal. registerValidSW(swUrl); } }).catch(function () { console.log('No internet connection found. App is running in offline mode.'); }); } function unregister() { if ('serviceWorker' in navigator) { navigator.serviceWorker.ready.then(function (registration) { registration.unregister(); }); } } //# sourceMappingURL=registerServiceWorker.js.map