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 MediaStreamTrack.onoverconstrained
event handler is a property called when the overconstrained
event is received. Such an event is sent when the track is again able to send data.
Syntax
track.onoverconstrained = function;
Values
function
is the name of a user-defined function, without the()
suffix or any parameters, or an anonymous function declaration, such asfunction(event) {...}
. An event handler always has one single parameter, containing the event, here of typeMediaStreamErrorEvent
.
Example
dc.onoverconstrained = function() { alert("overconstrained event detected!"); };
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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
onoverconstrained | Chrome Full support Yes | Edge Full support 12 | Firefox Full support Yes | IE No support No | Opera Full support Yes | Safari Full support Yes | WebView Android Full support Yes | Chrome Android Full support Yes | Firefox Android ? | Opera Android ? | Safari iOS Full support Yes | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Non-standard. Expect poor cross-browser support.
- Non-standard. Expect poor cross-browser support.
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.
See also
- The
overconstrained
event and its type,MediaStreamErrorEvent
.