MediaRecorder.onwarning

Deprecated
This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

The MediaRecorder.onwarning event handler (part of the MediaRecorder API) handles the recordingwarning event, allowing you to run code in response to non-fatal errors being thrown during media recording via a MediaRecorder, which don't halt recording.

Syntax

MediaRecorder.onwarning = function(event) { ... }
MediaRecorder.addEventListener('warning', function(event) { ... })

Example

...

  mediaRecorder.onwarning = function(e) {
    console.log("A warning has been raised: " + e.message);
  }

...

Properties

message: Contains information about the error that occurred.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	47 Disabled 47 Disabled Full support since Chrome 49. Disabled From version 47: this feature is behind the `Experimental Web Platform features` preference (needs to be set to `Enabled`). To change preferences in Chrome, visit chrome://flags.	?	25	?	36	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	49	49	?	25	36	?	?

W3cubDocs

MediaRecorder.onwarning

Syntax

Example

Properties

Browser compatibilityUpdate compatibility data on GitHub

See also