FeaturePolicy - Web APIs

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
Feature Policy	Editor's Draft	Initial definition.

Browser compatibility

	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.

FeaturePolicy Methods

Specification

Browser compatibility

Legend

See also