diff --git a/packages/cra-template-typescript/template/src/index.tsx b/packages/cra-template-typescript/template/src/index.tsx
index e459b13323..ef2edf8ea3 100644
--- a/packages/cra-template-typescript/template/src/index.tsx
+++ b/packages/cra-template-typescript/template/src/index.tsx
@@ -2,7 +2,6 @@ import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
-import * as serviceWorkerRegistration from './serviceWorkerRegistration';
import reportWebVitals from './reportWebVitals';
ReactDOM.render(
@@ -12,11 +11,6 @@ ReactDOM.render(
document.getElementById('root')
);
-// If you want your app to work offline and load faster, you can change
-// unregister() to register() below. Note this comes with some pitfalls.
-// Learn more about service workers: https://cra.link/PWA
-serviceWorkerRegistration.unregister();
-
// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
diff --git a/packages/cra-template-typescript/template/src/serviceWorkerRegistration.ts b/packages/cra-template-typescript/template/src/serviceWorkerRegistration.ts
deleted file mode 100644
index 9fca0aa3bd..0000000000
--- a/packages/cra-template-typescript/template/src/serviceWorkerRegistration.ts
+++ /dev/null
@@ -1,149 +0,0 @@
-// This optional code is used to register a service worker.
-// register() is not called by default.
-
-// 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 subsequent visits to a page, after all the
-// existing tabs open on the page have been closed, since previously cached
-// resources are updated in the background.
-
-// To learn more about the benefits of this model and instructions on how to
-// opt-in, read https://cra.link/PWA
-
-const isLocalhost = Boolean(
- window.location.hostname === 'localhost' ||
- // [::1] is the IPv6 localhost address.
- window.location.hostname === '[::1]' ||
- // 127.0.0.0/8 are considered localhost for IPv4.
- window.location.hostname.match(
- /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
- )
-);
-
-type Config = {
- onSuccess?: (registration: ServiceWorkerRegistration) => void;
- onUpdate?: (registration: ServiceWorkerRegistration) => void;
-};
-
-export function register(config?: Config) {
- if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
- // The URL constructor is available in all browsers that support SW.
- const publicUrl = new URL(
- process.env.PUBLIC_URL,
- window.location.href
- );
- if (publicUrl.origin !== window.location.origin) {
- // Our service worker won't work if PUBLIC_URL is on a different origin
- // from what our page is served on. This might happen if a CDN is used to
- // serve assets; see https://github.com/facebook/create-react-app/issues/2374
- return;
- }
-
- window.addEventListener('load', () => {
- const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
-
- if (isLocalhost) {
- // This is running on localhost. Let's check if a service worker still exists or not.
- checkValidServiceWorker(swUrl, config);
-
- // Add some additional logging to localhost, pointing developers to the
- // service worker/PWA documentation.
- navigator.serviceWorker.ready.then(() => {
- console.log(
- 'This web app is being served cache-first by a service ' +
- 'worker. To learn more, visit https://cra.link/PWA'
- );
- });
- } else {
- // Is not localhost. Just register service worker
- registerValidSW(swUrl, config);
- }
- });
- }
-}
-
-function registerValidSW(swUrl: string, config?: Config) {
- navigator.serviceWorker
- .register(swUrl)
- .then(registration => {
- registration.onupdatefound = () => {
- const installingWorker = registration.installing;
- if (installingWorker == null) {
- return;
- }
- installingWorker.onstatechange = () => {
- if (installingWorker.state === 'installed') {
- if (navigator.serviceWorker.controller) {
- // At this point, the updated precached content has been fetched,
- // but the previous service worker will still serve the older
- // content until all client tabs are closed.
- console.log(
- 'New content is available and will be used when all ' +
- 'tabs for this page are closed. See https://cra.link/PWA.'
- );
-
- // Execute callback
- if (config && config.onUpdate) {
- config.onUpdate(registration);
- }
- } 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.');
-
- // Execute callback
- if (config && config.onSuccess) {
- config.onSuccess(registration);
- }
- }
- }
- };
- };
- })
- .catch(error => {
- console.error('Error during service worker registration:', error);
- });
-}
-
-function checkValidServiceWorker(swUrl: string, config?: Config) {
- // Check if the service worker can be found. If it can't reload the page.
- fetch(swUrl, {
- headers: { 'Service-Worker': 'script' }
- })
- .then(response => {
- // Ensure service worker exists, and that we really are getting a JS file.
- const contentType = response.headers.get('content-type');
- if (
- response.status === 404 ||
- (contentType != null && contentType.indexOf('javascript') === -1)
- ) {
- // No service worker found. Probably a different app. Reload the page.
- navigator.serviceWorker.ready.then(registration => {
- registration.unregister().then(() => {
- window.location.reload();
- });
- });
- } else {
- // Service worker found. Proceed as normal.
- registerValidSW(swUrl, config);
- }
- })
- .catch(() => {
- console.log(
- 'No internet connection found. App is running in offline mode.'
- );
- });
-}
-
-export function unregister() {
- if ('serviceWorker' in navigator) {
- navigator.serviceWorker.ready
- .then(registration => {
- registration.unregister();
- })
- .catch(error => {
- console.error(error.message);
- });
- }
-}
diff --git a/packages/cra-template/template/src/index.js b/packages/cra-template/template/src/index.js
index e459b13323..ef2edf8ea3 100644
--- a/packages/cra-template/template/src/index.js
+++ b/packages/cra-template/template/src/index.js
@@ -2,7 +2,6 @@ import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
-import * as serviceWorkerRegistration from './serviceWorkerRegistration';
import reportWebVitals from './reportWebVitals';
ReactDOM.render(
@@ -12,11 +11,6 @@ ReactDOM.render(
document.getElementById('root')
);
-// If you want your app to work offline and load faster, you can change
-// unregister() to register() below. Note this comes with some pitfalls.
-// Learn more about service workers: https://cra.link/PWA
-serviceWorkerRegistration.unregister();
-
// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
diff --git a/packages/cra-template/template/src/serviceWorkerRegistration.js b/packages/cra-template/template/src/serviceWorkerRegistration.js
deleted file mode 100644
index 02b0533647..0000000000
--- a/packages/cra-template/template/src/serviceWorkerRegistration.js
+++ /dev/null
@@ -1,141 +0,0 @@
-// This optional code is used to register a service worker.
-// register() is not called by default.
-
-// 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 subsequent visits to a page, after all the
-// existing tabs open on the page have been closed, since previously cached
-// resources are updated in the background.
-
-// To learn more about the benefits of this model and instructions on how to
-// opt-in, read https://cra.link/PWA
-
-const isLocalhost = Boolean(
- window.location.hostname === 'localhost' ||
- // [::1] is the IPv6 localhost address.
- window.location.hostname === '[::1]' ||
- // 127.0.0.0/8 are considered localhost for IPv4.
- window.location.hostname.match(
- /^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
- )
-);
-
-export function register(config) {
- if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
- // The URL constructor is available in all browsers that support SW.
- const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
- if (publicUrl.origin !== window.location.origin) {
- // Our service worker won't work if PUBLIC_URL is on a different origin
- // from what our page is served on. This might happen if a CDN is used to
- // serve assets; see https://github.com/facebook/create-react-app/issues/2374
- return;
- }
-
- window.addEventListener('load', () => {
- const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
-
- if (isLocalhost) {
- // This is running on localhost. Let's check if a service worker still exists or not.
- checkValidServiceWorker(swUrl, config);
-
- // Add some additional logging to localhost, pointing developers to the
- // service worker/PWA documentation.
- navigator.serviceWorker.ready.then(() => {
- console.log(
- 'This web app is being served cache-first by a service ' +
- 'worker. To learn more, visit https://cra.link/PWA'
- );
- });
- } else {
- // Is not localhost. Just register service worker
- registerValidSW(swUrl, config);
- }
- });
- }
-}
-
-function registerValidSW(swUrl, config) {
- navigator.serviceWorker
- .register(swUrl)
- .then(registration => {
- registration.onupdatefound = () => {
- const installingWorker = registration.installing;
- if (installingWorker == null) {
- return;
- }
- installingWorker.onstatechange = () => {
- if (installingWorker.state === 'installed') {
- if (navigator.serviceWorker.controller) {
- // At this point, the updated precached content has been fetched,
- // but the previous service worker will still serve the older
- // content until all client tabs are closed.
- console.log(
- 'New content is available and will be used when all ' +
- 'tabs for this page are closed. See https://cra.link/PWA.'
- );
-
- // Execute callback
- if (config && config.onUpdate) {
- config.onUpdate(registration);
- }
- } 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.');
-
- // Execute callback
- if (config && config.onSuccess) {
- config.onSuccess(registration);
- }
- }
- }
- };
- };
- })
- .catch(error => {
- console.error('Error during service worker registration:', error);
- });
-}
-
-function checkValidServiceWorker(swUrl, config) {
- // Check if the service worker can be found. If it can't reload the page.
- fetch(swUrl, {
- headers: { 'Service-Worker': 'script' },
- })
- .then(response => {
- // Ensure service worker exists, and that we really are getting a JS file.
- const contentType = response.headers.get('content-type');
- if (
- response.status === 404 ||
- (contentType != null && contentType.indexOf('javascript') === -1)
- ) {
- // No service worker found. Probably a different app. Reload the page.
- navigator.serviceWorker.ready.then(registration => {
- registration.unregister().then(() => {
- window.location.reload();
- });
- });
- } else {
- // Service worker found. Proceed as normal.
- registerValidSW(swUrl, config);
- }
- })
- .catch(() => {
- console.log(
- 'No internet connection found. App is running in offline mode.'
- );
- });
-}
-
-export function unregister() {
- if ('serviceWorker' in navigator) {
- navigator.serviceWorker.ready
- .then(registration => {
- registration.unregister();
- })
- .catch(error => {
- console.error(error.message);
- });
- }
-}