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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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13 changes: 11 additions & 2 deletions packages/react-scripts/template/src/index.js
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Expand Up @@ -2,7 +2,16 @@ import React from 'react';
import ReactDOM from 'react-dom';
import './index.css';
import App from './App';
import registerServiceWorker from './registerServiceWorker';
import registerServiceWorker, {
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Importing both of these results in a lint error because only one of them is ever used. We could override eslint for this line, we could only import one and update the comment below (ugh) or we could do something else entirely like only using registerServiceWorker and passing it a boolean to enable/disable.

unregister as unregisterServiceWorker,
} from './registerServiceWorker';

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

// By default we make sure that no service worker is registered. If you would
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People reading this probably don't know what service worker is.
Can you rewrite this so it's a bit less wordy, and also understandable to most folks?

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Now that's a challenge! 😀

I guess we can remove the first sentence and maybe link to that Google page from the docs about what a service worker is. Alternatively we could just link to the "Making a Progressive Web App" section of the CRA docs. I'll work on it.

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I was thinking something like

// If you want your app to work offline and load faster, you can change “disable” below to “enable”.
// Note this comes with some deployment pitfalls.
// Learn more about service workers: <...>

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If it helps, https://developers.google.com/web/fundamentals/primers/service-workers/ attempts to be a one-stop landing page for a service worker overview, and https://developers.google.com/web/progressive-web-apps/ is a similar landing page for PWAs in general.

// like to enable service worker uncomment the call to registerServiceWorker()
// and comment out the call to unregisterServiceWorker().
// See http://bit.ly/2vJdu84 for more information.

// registerServiceWorker();
unregisterServiceWorker();