|
11 | 11 | // opt-in, read https://bit.ly/CRA-PWA |
12 | 12 |
|
13 | 13 | const isLocalhost = Boolean( |
14 | | - window.location.hostname === "localhost" || |
15 | | - // [::1] is the IPv6 localhost address. |
16 | | - window.location.hostname === "[::1]" || |
17 | | - // 127.0.0.0/8 are considered localhost for IPv4. |
18 | | - window.location.hostname.match(/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/) |
| 14 | + window.location.hostname === 'localhost' || |
| 15 | + // [::1] is the IPv6 localhost address. |
| 16 | + window.location.hostname === '[::1]' || |
| 17 | + // 127.0.0.0/8 are considered localhost for IPv4. |
| 18 | + window.location.hostname.match( |
| 19 | + /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/ |
| 20 | + ) |
19 | 21 | ); |
20 | 22 |
|
21 | 23 | type Config = { |
22 | | - onSuccess?: (registration: ServiceWorkerRegistration) => void; |
23 | | - onUpdate?: (registration: ServiceWorkerRegistration) => void; |
| 24 | + onSuccess?: (registration: ServiceWorkerRegistration) => void; |
| 25 | + onUpdate?: (registration: ServiceWorkerRegistration) => void; |
24 | 26 | }; |
25 | 27 |
|
26 | 28 | export function register(config?: Config) { |
27 | | - if (process.env.NODE_ENV === "production" && "serviceWorker" in navigator) { |
28 | | - // The URL constructor is available in all browsers that support SW. |
29 | | - const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href); |
30 | | - if (publicUrl.origin !== window.location.origin) { |
31 | | - // Our service worker won't work if PUBLIC_URL is on a different origin |
32 | | - // from what our page is served on. This might happen if a CDN is used to |
33 | | - // serve assets; see https://github.com/facebook/create-react-app/issues/2374 |
34 | | - return; |
35 | | - } |
| 29 | + if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) { |
| 30 | + // The URL constructor is available in all browsers that support SW. |
| 31 | + const publicUrl = new URL( |
| 32 | + process.env.PUBLIC_URL, |
| 33 | + window.location.href |
| 34 | + ); |
| 35 | + if (publicUrl.origin !== window.location.origin) { |
| 36 | + // Our service worker won't work if PUBLIC_URL is on a different origin |
| 37 | + // from what our page is served on. This might happen if a CDN is used to |
| 38 | + // serve assets; see https://github.com/facebook/create-react-app/issues/2374 |
| 39 | + return; |
| 40 | + } |
36 | 41 |
|
37 | | - window.addEventListener("load", () => { |
38 | | - const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`; |
| 42 | + window.addEventListener('load', () => { |
| 43 | + const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`; |
39 | 44 |
|
40 | | - if (isLocalhost) { |
41 | | - // This is running on localhost. Let's check if a service worker still exists or not. |
42 | | - checkValidServiceWorker(swUrl, config); |
| 45 | + if (isLocalhost) { |
| 46 | + // This is running on localhost. Let's check if a service worker still exists or not. |
| 47 | + checkValidServiceWorker(swUrl, config); |
43 | 48 |
|
44 | | - // Add some additional logging to localhost, pointing developers to the |
45 | | - // service worker/PWA documentation. |
46 | | - navigator.serviceWorker.ready.then(() => { |
47 | | - console.log("This web app is being served cache-first by a service " + "worker. To learn more, visit https://bit.ly/CRA-PWA"); |
48 | | - }); |
49 | | - } else { |
50 | | - // Is not localhost. Just register service worker |
51 | | - registerValidSW(swUrl, config); |
52 | | - } |
| 49 | + // Add some additional logging to localhost, pointing developers to the |
| 50 | + // service worker/PWA documentation. |
| 51 | + navigator.serviceWorker.ready.then(() => { |
| 52 | + console.log( |
| 53 | + 'This web app is being served cache-first by a service ' + |
| 54 | + 'worker. To learn more, visit https://bit.ly/CRA-PWA' |
| 55 | + ); |
53 | 56 | }); |
54 | | - } |
| 57 | + } else { |
| 58 | + // Is not localhost. Just register service worker |
| 59 | + registerValidSW(swUrl, config); |
| 60 | + } |
| 61 | + }); |
| 62 | + } |
55 | 63 | } |
56 | 64 |
|
57 | 65 | function registerValidSW(swUrl: string, config?: Config) { |
58 | | - navigator.serviceWorker |
59 | | - .register(swUrl) |
60 | | - .then((registration) => { |
61 | | - registration.onupdatefound = () => { |
62 | | - const installingWorker = registration.installing; |
63 | | - if (installingWorker == null) { |
64 | | - return; |
65 | | - } |
66 | | - installingWorker.onstatechange = () => { |
67 | | - if (installingWorker.state === "installed") { |
68 | | - if (navigator.serviceWorker.controller) { |
69 | | - // At this point, the updated precached content has been fetched, |
70 | | - // but the previous service worker will still serve the older |
71 | | - // content until all client tabs are closed. |
72 | | - console.log("New content is available and will be used when all " + "tabs for this page are closed. See https://bit.ly/CRA-PWA."); |
| 66 | + navigator.serviceWorker |
| 67 | + .register(swUrl) |
| 68 | + .then(registration => { |
| 69 | + registration.onupdatefound = () => { |
| 70 | + const installingWorker = registration.installing; |
| 71 | + if (installingWorker == null) { |
| 72 | + return; |
| 73 | + } |
| 74 | + installingWorker.onstatechange = () => { |
| 75 | + if (installingWorker.state === 'installed') { |
| 76 | + if (navigator.serviceWorker.controller) { |
| 77 | + // At this point, the updated precached content has been fetched, |
| 78 | + // but the previous service worker will still serve the older |
| 79 | + // content until all client tabs are closed. |
| 80 | + console.log( |
| 81 | + 'New content is available and will be used when all ' + |
| 82 | + 'tabs for this page are closed. See https://bit.ly/CRA-PWA.' |
| 83 | + ); |
73 | 84 |
|
74 | | - // Execute callback |
75 | | - if (config && config.onUpdate) { |
76 | | - config.onUpdate(registration); |
77 | | - } |
78 | | - } else { |
79 | | - // At this point, everything has been precached. |
80 | | - // It's the perfect time to display a |
81 | | - // "Content is cached for offline use." message. |
82 | | - console.log("Content is cached for offline use."); |
| 85 | + // Execute callback |
| 86 | + if (config && config.onUpdate) { |
| 87 | + config.onUpdate(registration); |
| 88 | + } |
| 89 | + } else { |
| 90 | + // At this point, everything has been precached. |
| 91 | + // It's the perfect time to display a |
| 92 | + // "Content is cached for offline use." message. |
| 93 | + console.log('Content is cached for offline use.'); |
83 | 94 |
|
84 | | - // Execute callback |
85 | | - if (config && config.onSuccess) { |
86 | | - config.onSuccess(registration); |
87 | | - } |
88 | | - } |
89 | | - } |
90 | | - }; |
91 | | - }; |
92 | | - }) |
93 | | - .catch((error) => { |
94 | | - console.error("Error during service worker registration:", error); |
95 | | - }); |
| 95 | + // Execute callback |
| 96 | + if (config && config.onSuccess) { |
| 97 | + config.onSuccess(registration); |
| 98 | + } |
| 99 | + } |
| 100 | + } |
| 101 | + }; |
| 102 | + }; |
| 103 | + }) |
| 104 | + .catch(error => { |
| 105 | + console.error('Error during service worker registration:', error); |
| 106 | + }); |
96 | 107 | } |
97 | 108 |
|
98 | 109 | function checkValidServiceWorker(swUrl: string, config?: Config) { |
99 | | - // Check if the service worker can be found. If it can't reload the page. |
100 | | - fetch(swUrl, { |
101 | | - headers: { "Service-Worker": "script" } |
102 | | - }) |
103 | | - .then((response) => { |
104 | | - // Ensure service worker exists, and that we really are getting a JS file. |
105 | | - const contentType = response.headers.get("content-type"); |
106 | | - if (response.status === 404 || (contentType != null && contentType.indexOf("javascript") === -1)) { |
107 | | - // No service worker found. Probably a different app. Reload the page. |
108 | | - navigator.serviceWorker.ready.then((registration) => { |
109 | | - registration.unregister().then(() => { |
110 | | - window.location.reload(); |
111 | | - }); |
112 | | - }); |
113 | | - } else { |
114 | | - // Service worker found. Proceed as normal. |
115 | | - registerValidSW(swUrl, config); |
116 | | - } |
117 | | - }) |
118 | | - .catch(() => { |
119 | | - console.log("No internet connection found. App is running in offline mode."); |
| 110 | + // Check if the service worker can be found. If it can't reload the page. |
| 111 | + fetch(swUrl, { |
| 112 | + headers: { 'Service-Worker': 'script' } |
| 113 | + }) |
| 114 | + .then(response => { |
| 115 | + // Ensure service worker exists, and that we really are getting a JS file. |
| 116 | + const contentType = response.headers.get('content-type'); |
| 117 | + if ( |
| 118 | + response.status === 404 || |
| 119 | + (contentType != null && contentType.indexOf('javascript') === -1) |
| 120 | + ) { |
| 121 | + // No service worker found. Probably a different app. Reload the page. |
| 122 | + navigator.serviceWorker.ready.then(registration => { |
| 123 | + registration.unregister().then(() => { |
| 124 | + window.location.reload(); |
| 125 | + }); |
120 | 126 | }); |
| 127 | + } else { |
| 128 | + // Service worker found. Proceed as normal. |
| 129 | + registerValidSW(swUrl, config); |
| 130 | + } |
| 131 | + }) |
| 132 | + .catch(() => { |
| 133 | + console.log( |
| 134 | + 'No internet connection found. App is running in offline mode.' |
| 135 | + ); |
| 136 | + }); |
121 | 137 | } |
122 | 138 |
|
123 | 139 | export function unregister() { |
124 | | - if ("serviceWorker" in navigator) { |
125 | | - navigator.serviceWorker.ready |
126 | | - .then((registration) => { |
127 | | - registration.unregister(); |
128 | | - }) |
129 | | - .catch((error) => { |
130 | | - console.error(error.message); |
131 | | - }); |
132 | | - } |
| 140 | + if ('serviceWorker' in navigator) { |
| 141 | + navigator.serviceWorker.ready |
| 142 | + .then(registration => { |
| 143 | + registration.unregister(); |
| 144 | + }) |
| 145 | + .catch(error => { |
| 146 | + console.error(error.message); |
| 147 | + }); |
| 148 | + } |
133 | 149 | } |
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