Web/API/FeaturePolicy

The FeaturePolicy interface of the Feature Policy API represents the set of policies applied to the current execution context.

FeaturePolicy Methods

FeaturePolicy.allowsFeature

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

FeaturePolicy.features

Returns a list of names of all features supported by the User Agent. Feature whose name appears on the list might not be allowed by the Feature Policy of the current execution context and/or might not be accessible because of user's permissions.

FeaturePolicy.allowedFeatures

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

FeaturePolicy.getAllowlistForFeature

Returns the Allow list for the specified feature.

Specification

Specification	Status	Comment
Permissions Policy	Editor's Draft	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
FeaturePolicy Experimental'	Chrome Full support 74 Full support 74 No support 73 — 74 Disabled' Disabled' From version 73 until version 74 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags. No support 69 — 73 Alternate Name' Disabled' Alternate Name' Uses the non-standard name: Policy Disabled' From version 69 until version 73 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.	Edge Full support 79	Firefox Full support 65 Alternate Name' Disabled' Full support 65 Alternate Name' Disabled' Alternate Name' Uses the non-standard name: Policy Disabled' From version 65: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 62 Full support 62 No support 60 — 62 Disabled' Disabled' From version 60 until version 62 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). No support 56 — 60 Alternate Name' Disabled' Alternate Name' Uses the non-standard name: Policy Disabled' From version 56 until version 60 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled).	Safari No support No	WebView Android Full support 74	Chrome Android Full support 74 Full support 74 No support 73 — 74 Disabled' Disabled' From version 73 until version 74 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags. No support 69 — 73 Alternate Name' Disabled' Alternate Name' Uses the non-standard name: Policy Disabled' From version 69 until version 73 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 65 Alternate Name' Disabled' Full support 65 Alternate Name' Disabled' Alternate Name' Uses the non-standard name: Policy Disabled' From version 65: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	Opera Android Full support 48 Alternate Name' Disabled' Full support 48 Alternate Name' Disabled' Alternate Name' Uses the non-standard name: Policy Disabled' From version 48: this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled).	Safari iOS No support No	Samsung Internet Android Full support 11.0
allowedFeatures Experimental'	Chrome Full support 74 Full support 74 No support 69 — 73 Disabled' Disabled' From version 69 until version 73 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.	Edge Full support 79	Firefox Full support 65 Disabled' Full support 65 Disabled' Disabled' From version 65: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 62 Full support 62 No support 56 — 62 Disabled' Disabled' From version 56 until version 62 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled).	Safari No support No	WebView Android Full support 74	Chrome Android Full support 74 Full support 74 No support 69 — 74 Disabled' Disabled' From version 69 until version 74 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 65 Disabled' Full support 65 Disabled' Disabled' From version 65: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	Opera Android Full support 48 Disabled' Full support 48 Disabled' Disabled' From version 48: this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled).	Safari iOS No support No	Samsung Internet Android Full support 11.0
allowsFeature Experimental'	Chrome Full support 74 Full support 74 No support 69 — 73 Disabled' Disabled' From version 69 until version 73 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.	Edge Full support 79	Firefox Full support 65 Disabled' Full support 65 Disabled' Disabled' From version 65: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 62 Full support 62 No support 56 — 62 Disabled' Disabled' From version 56 until version 62 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled).	Safari No support No	WebView Android Full support 74	Chrome Android Full support 74 Full support 74 No support 69 — 74 Disabled' Disabled' From version 69 until version 74 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 65 Disabled' Full support 65 Disabled' Disabled' From version 65: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	Opera Android Full support 48 Disabled' Full support 48 Disabled' Disabled' From version 48: this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled).	Safari iOS No support No	Samsung Internet Android Full support 11.0
features Experimental'	Chrome Full support 74	Edge Full support 79	Firefox Full support 70 Disabled' Full support 70 Disabled' Disabled' From version 70: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 62	Safari No support No	WebView Android Full support 74	Chrome Android Full support 74	Firefox Android No support No	Opera Android No support No	Safari iOS No support No	Samsung Internet Android Full support 11.0
getAllowlistForFeature Experimental'	Chrome Full support 74 Full support 74 No support 69 — 73 Disabled' Disabled' From version 69 until version 73 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.	Edge Full support 79	Firefox Full support 65 Disabled' Full support 65 Disabled' Disabled' From version 65: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 62 Full support 62 No support 56 — 62 Disabled' Disabled' From version 56 until version 62 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled).	Safari No support No	WebView Android Full support 74	Chrome Android Full support 74 Full support 74 No support 69 — 74 Disabled' Disabled' From version 69 until version 74 (exclusive): this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled). To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 65 Disabled' Full support 65 Disabled' Disabled' From version 65: this feature is behind the dom.security.featurePolicy.webidl.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.	Opera Android Full support 48 Disabled' Full support 48 Disabled' Disabled' From version 48: this feature is behind the #enable-experimental-productivity-features preference (needs to be set to Enabled).	Safari iOS No support No	Samsung Internet Android Full support 11.0

Legend

Full support  

Full support

No support  

No support

Experimental. Expect behavior to change in the future.'

Experimental. Expect behavior to change in the future.

User must explicitly enable this feature.'

User must explicitly enable this feature.

Uses a non-standard name.'

Uses a non-standard name.

See also

• Feature-Policy
• Privacy, permissions, and information security

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