Press n or j to go to the next uncovered block, b, p or k for the previous block.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | // tslint:disable:no-console // 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}$/)); export default 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.toString()); 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) { // Is not local host. Just register service worker registerValidSW(swUrl); } else { // This is running on localhost. Lets check if a service worker still exists or not. checkValidServiceWorker(swUrl); } }); } } function registerValidSW(swUrl) { navigator.serviceWorker .register(swUrl) .then(function (registration) { registration.onupdatefound = function () { var installingWorker = registration.installing; if (installingWorker) { 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.'); }); } export function unregister() { if ('serviceWorker' in navigator) { navigator.serviceWorker.ready.then(function (registration) { registration.unregister(); }); } } //# sourceMappingURL=registerServiceWorker.js.map |