FeaturePolicy: features() method
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The features() method of the
FeaturePolicy interface 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 Permissions Policy of the current execution context and/or might not be
accessible because of user's permissions.
Syntax
js
const supportedFeatures = FeaturePolicy.features()
Parameters
None.
Return value
A list of strings that represent names of all Permissions Policy directives supported by the user agent.
Example
The following example logs all the supported directives in the console.
js
// Get the FeaturePolicy object
const featurePolicy = document.featurePolicy;
// Retrieve the list of all supported Permissions Policy directives
const supportedDirectives = featurePolicy.features();
// Print out each directive into the console
for (const directive of supportedDirectives) {
console.log(directive);
}
Specifications
No specification found
No specification data found for api.FeaturePolicy.features.
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
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