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 compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
onwarning
Deprecated
Chrome Full support 49Edge Full support 79Firefox No support 25 — 71IE No support NoOpera Full support 36Safari No support NoWebView Android Full support 49Chrome Android Full support 49Firefox Android Full support 25Opera Android Full support 36Safari iOS No support NoSamsung Internet Android Full support 5.0

Legend

Full support
Full support
No support
No support
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.

See also