chromium/src/third_party/blink/renderer/core/feature_policy/feature_policy.idl

// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// https://wicg.github.io/feature-policy/#the-policy-object
[
  Exposed=Window,
  ImplementedAs=DOMFeaturePolicy
] interface FeaturePolicy {
  [MeasureAs=FeaturePolicyJSAPI, CallWith=ScriptState] boolean allowsFeature(DOMString feature, optional DOMString origin);
  [HighEntropy=Direct, MeasureAs=FeaturePolicyJSAPI, CallWith=ScriptState] sequence<DOMString> features();
  [MeasureAs=FeaturePolicyJSAPI, CallWith=ScriptState] sequence<DOMString> allowedFeatures();
  [MeasureAs=FeaturePolicyJSAPI, CallWith=ScriptState] sequence<DOMString> getAllowlistForFeature(DOMString feature);
};