1. Web
  2. Web APIs
  3. OverconstrainedError
  4. constraint

OverconstrainedError: constraint property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

The constraint read-only property of the OverconstrainedError interface returns the constraint that was supplied in the constructor, meaning the constraint that was not satisfied.

Value

A string.

Specifications

Specification
Media Capture and Streams
# dom-overconstrainederror-constraint

Browser compatibility

Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
constraint
Chrome – Full support
Chrome 63 (Release date: 2017-12-06)
footnote Full support
Edge – Full support
Edge 79 (Release date: 2020-01-15)
footnote Full support
Firefox – No support
Firefox
footnote No support
Opera – Full support
Opera 50 (Release date: 2018-01-04)
footnote Full support
Safari – Full support
Safari 11.1 (Release date: 2018-04-12)
footnote Full support
Chrome Android – Full support
Chrome Android 63 (Release date: 2017-12-05)
footnote Full support
Firefox for Android – No support
Firefox for Android
footnote No support
Opera Android – Full support
Opera Android 46 (Release date: 2018-05-14)
footnote Full support
Safari on iOS – Full support
Safari on iOS 11.3 (Release date: 2018-03-29)
footnote Full support
Samsung Internet – Full support
Samsung Internet 8 (Release date: 2018-07-18)
footnote Full support
WebView Android – Full support
WebView Android 63 (Release date: 2017-12-05)
footnote Full support
WebView on iOS – Full support
WebView on iOS 11.3 (Release date: 2018-03-29)
footnote Full support

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Full support
No support

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