Web/API/OverconstrainedError/constraint

Draft This page is not complete.

Secure contextThis feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.

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

Syntax

var constraint = Overconstrainederror.constraint;

Value

A String

Specifications

Specification	Status	Comment
Media Capture and StreamsThe definition of 'constraint' in that specification.	Candidate Recommendation	Initial definition.

Browser compatibility

The compatibility table in 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.

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
constraint Experimental'	Chrome Full support 63	Edge Full support ≤79	Firefox ?	IE ?	Opera Full support 50	Safari ?	WebView Android Full support 63	Chrome Android Full support 63	Firefox Android ?	Opera Android Full support 46	Safari iOS ?	Samsung Internet Android Full support 8.0

Legend

Full support  

Full support

Compatibility unknown  

Compatibility unknown

Experimental. Expect behavior to change in the future.'

Experimental. Expect behavior to change in the future.

OverconstrainedError.constraint by Mozilla Contributors is licensed under CC-BY-SA 2.5.