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FeaturePolicy

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The FeaturePolicy interface represents the set of Permissions Policies applied to the current execution context.

Instance methods

FeaturePolicy.allowsFeature Experimental

Returns a Boolean that indicates whether or not a particular feature is enabled in the specified context.

FeaturePolicy.features Experimental

Returns a list of names of all features supported by the User Agent. Features whose names appear on the list might not be allowed by the Permissions Policy of the current execution context and/or might be restricted by user-granted permissions.

FeaturePolicy.allowedFeatures Experimental

Returns a list of names of all features supported by the User Agent and allowed by the Permissions Policy. Note that features appearing on this list might still be behind a user permission.

FeaturePolicy.getAllowlistForFeature Experimental

Returns the allow for the specified feature.

Specifications

No specification found

No specification data found for api.FeaturePolicy.
Check for problems with this page or contribute a missing spec_url to mdn/browser-compat-data. Also make sure the specification is included in w3c/browser-specs.

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
FeaturePolicy 74 79 65 No 62 No 74 74 No 53 No 11.0
allowedFeatures 74 79 65 No 62 No 74 74 No 53 No 11.0
allowsFeature 74 79 65 No 62 No 74 74 No 53 No 11.0
features 74 79 70 No 62 No 74 74 No 53 No 11.0
getAllowlistForFeature 74 79 65 No 62 No 74 74 No 53 No 11.0

See also

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https://developer.mozilla.org/en-US/docs/Web/API/FeaturePolicy