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Disable service worker by default #3817

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merged 6 commits into from
Jan 19, 2018
Merged

Disable service worker by default #3817

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acdd348
WIP disable service worker by default (#2554)
iansu Jan 16, 2018
5e15920
Updated service worker registration
iansu Jan 16, 2018
c6f3ca2
Readd default export in registerServiceWorker.js
iansu Jan 16, 2018
3402a41
Updated comments about using Service Worker
iansu Jan 16, 2018
184cec4
Call it serviceWorker
gaearon Jan 19, 2018
da2dce0
Nits
gaearon Jan 19, 2018
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8 changes: 6 additions & 2 deletions packages/react-scripts/template/src/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,11 @@ import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import registerServiceWorker from './registerServiceWorker';
import * as serviceWorker from './serviceWorker';

ReactDOM.render(<App />, document.getElementById('root'));
registerServiceWorker();

// 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: http://bit.ly/2vJdu84
serviceWorker.unregister();
2 changes: 1 addition & 1 deletion ...pts/template/src/registerServiceWorker.js → ...act-scripts/template/src/serviceWorker.js
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Expand Up @@ -18,7 +18,7 @@ const isLocalhost = Boolean(
)
);

export default function register() {
export function register() {
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@petetnt petetnt Jan 16, 2018 •
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The default export still needs to be registerServiceWorker too though (even if both are named exports too) for it to be backwards compatible (even if this lands to a major version update 2.0.0, it would be unneccessary to break everyones build for such a tiny change).

Still partial to passing the boolean in myself: #2554 (comment)

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It won't break anyone's build because this part is copied into every project. Even if we changed completely the API between them, we could've shipped that in any patch release IMO.

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);
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