FeaturePolicy
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.
The FeaturePolicy interface represents the set of Permissions Policies applied to the current execution context.
Instance 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. 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-
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-
Returns the allow for the specified feature.