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:

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

Browser compatibility

[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.

See also

• Using the MediaRecorder API
• Web Dictaphone: MediaRecorder + getUserMedia + Web Audio API visualization demo, by Chris Mills (source on Github.)
• simpl.info MediaStream Recording demo, by Sam Dutton.
• Navigator.getUserMedia