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    Many thanks to chrisbolin for making 98% of this project in the first place. I have just added a few minor changes to help it also work when an app is published via Cordova.

    Offline and Online components for React and Cordova

    Components that track offline and online state. Render certain content only when online (or only when offline).

    import { Offline, Online } from "react-detect-offline";
    const App = () => (
        <Online>Only shown when you're online</Online>
        <Offline>Only shown offline (surprise!)</Offline>


    Check out chris.bolin.co/offline for a simple example (source code).



    <Online/> and <Offline/> - Components that render their children only when the browser is online/offline.

    <Offline>You're offline right now. Check your connection.</Offline>


    <Detector render={({ online }) => ...}/> - Component that calls its render prop every time the connection state changes. The render prop is supplied with an object with an online boolean value. Recommended for more complex cases, e.g. when styles need to be changed with connection status.

      render={({ online }) => (
        <div className={online ? "normal" : "warning"}>
          You are currently {online ? "online" : "offline"}


    <Online/>, <Offline/>, and <Detector/> accept the following props:

    Prop Type Description Default
    polling Obj or Bool Config for polling fallback [1] [see below]
    polling.enabled Boolean Force polling on or off Depends on the browser [1]
    polling.url String URL to pool for connection status "https://ipv4.icanhazip.com"
    polling.interval Number How often (in ms) to poll 5000
    polling.timeout Number How long (in ms) before timeout 5000
    onChange Function Called when connection changes none
    children [2] Element(s) Children not Detector none
    render [3] Func Render function Detector only none

    [1] Polling is only used as a fallback for browsers that don't support the "online" event. Currently these are Chrome on Windows, Firefox on Windows, and Chrome on Linux.

    [2] <Online/> and <Offline/> only. <Detector/> will not render children.

    [3] <Detector/> only

    Browser Support

    The web spec we rely on is supported by IE 9+, Chrome 14+, Firefox 41+, and Safari 5+ - that's 94% of worldwide (98% of US) browser traffic. A polling fallback is used for browsers that don't implement the spec in a useful way (see note [1] in the above Props section).


    PRs are welcome!

    • Test: yarn test
    • Build: yarn build. Make sure you commit the build file (dist/index.js)


    npm i react-cordova-detect-offline

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