Web/API/MediaRecorder/error event

The MediaRecorder interface's error event is fired when an error occurs: for example because recording wasn't allowed or was attempted using an unsupported codec.

Bubbles	No
Cancelable	No
Interface	MediaRecorderErrorEvent
Event handler property	onerror

For details of the all the possible errors see the documentation for the event handler property: onerror.

Examples

Using addEventListener to listen for error events:

async function record() {
    const stream = await navigator.mediaDevices.getUserMedia({audio: true});
    const recorder = new MediaRecorder(stream);
    recorder.addEventListener('error', (event) => {
        console.error(`error recording stream: ${event.error.name}`)
    });
    recorder.start();
}

record();

The same, but using the onerror event handler property:

async function record() {
    const stream = await navigator.mediaDevices.getUserMedia({audio: true});
    const recorder = new MediaRecorder(stream);
    recorder.onerror = (event) => {
        console.error(`error recording stream: ${event.error.name}`)
    };
    recorder.start();
}

record();

Specifications

Specification	Status
MediaStream Recording	Working Draft

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
error event	Chrome Full support 49	Edge Full support 79	Firefox Full support 25	IE No support No	Opera Full support 36	Safari No support No	WebView Android Full support 49	Chrome Android Full support 49	Firefox Android Full support 25	Opera Android Full support 36	Safari iOS No support No	Samsung Internet Android Full support 5.0

Legend

Full support  

Full support

No support  

No support

See also

• Using the MediaRecorder API

MediaRecorder: error event by Mozilla Contributors is licensed under CC-BY-SA 2.5.