MediaRecorder.onerror

The MediaRecorder.onerror event handler (part of the MediaRecorder API) handles the DOMError event, allowing you to run code in response to fatal errors occurring that prevent media capture.

The errors that can occur when trying to record media are as follows:

Enumeration	Description
`InvalidState`	The `MediaRecorder` is not in a state in which the proposed operation is allowed to be executed.
`OutOfMemory`	The browser has exhausted the available memory.
`IllegalStreamModification`	A modification to the `stream` has occurred that makes it impossible to continue recording. An example would be the addition of a Track while recording is occurring.
`OtherRecordingError`	Used for a fatal error other than those listed above.

Syntax

MediaRecorder.onerror = function(event) { ... }
MediaRecorder.addEventListener('error', function(event) { ... })

Example

...

  function(stream) {
    var mediaRecorder = new MediaRecorder(stream);

    record.onclick = function() {
      mediaRecorder.start();
      console.log("recorder started");
    }

    mediaRecorder.onerror = function(e) {
      console.log("An error has occurred: " + e.message);
    }

...

Properties

message: Contains information about the error that occurred.

Specifications

Specification	Status	Comment
MediaStream Recording The definition of 'MediaRecorder.onerror' in that specification.	Working Draft	Initial definition

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	47^[2]	25.0 (25.0)	Not supported	Not supported	Not supported

Feature	Android	Android Webview	Firefox Mobile (Gecko)	Firefox OS	IE Phone	Opera Mobile	Safari Mobile	Chrome for Android
Basic support	Not supported	Not supported	25.0 (25.0)	1.3^[1]	Not supported	Not supported	Not supported	Not supported

[1] The intial Firefox OS implementation only supported audio recording.

[2] To try this feature on Chrome, enable Experimental Web Platform features from chrome://flags . Currently only video is supported, not audio.