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
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.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
FeaturePolicy | Chrome
Full support
74
| Edge Full support 79 | Firefox
Full support
65
| IE No support No | Opera
Full support
62
| Safari No support No | WebView Android Full support 74 | Chrome Android
Full support
74
| Firefox Android
Full support
65
| Opera Android
Full support
48
| Safari iOS No support No | Samsung Internet Android Full support 11.0 |
allowedFeatures | Chrome
Full support
74
| Edge Full support 79 | Firefox
Full support
65
| IE No support No | Opera
Full support
62
| Safari No support No | WebView Android Full support 74 | Chrome Android
Full support
74
| Firefox Android
Full support
65
| Opera Android
Full support
48
| Safari iOS No support No | Samsung Internet Android Full support 11.0 |
allowsFeature | Chrome
Full support
74
| Edge Full support 79 | Firefox
Full support
65
| IE No support No | Opera
Full support
62
| Safari No support No | WebView Android Full support 74 | Chrome Android
Full support
74
| Firefox Android
Full support
65
| Opera Android
Full support
48
| Safari iOS No support No | Samsung Internet Android Full support 11.0 |
features | Chrome Full support 74 | Edge Full support 79 | Firefox
Full support
70
| 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 | Chrome
Full support
74
| Edge Full support 79 | Firefox
Full support
65
| IE No support No | Opera
Full support
62
| Safari No support No | WebView Android Full support 74 | Chrome Android
Full support
74
| Firefox Android
Full support
65
| Opera Android
Full support
48
| 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.