FeaturePolicy

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.

规范

规范 状态 Comment
Feature Policy 编者草案 初始定义。

浏览器兼容性

更新 GitHub 上的兼容性数据
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
Chrome 74
74
不支持 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.
不支持 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 79 Firefox 65
Alternate Name Disabled
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 Opera 62
62
不支持 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 ).
不支持 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 WebView Android 74 Chrome Android 74
74
不支持 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.
不支持 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 65
Alternate Name Disabled
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 48
Alternate Name Disabled
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 Samsung Internet Android 11.0
allowedFeatures
Chrome 74
74
不支持 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 79 Firefox 65
Disabled
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 Opera 62
62
不支持 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 WebView Android 74 Chrome Android 74
74
不支持 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 65
Disabled
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 48
Disabled
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 Samsung Internet Android 11.0
allowsFeature
Chrome 74
74
不支持 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 79 Firefox 65
Disabled
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 Opera 62
62
不支持 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 WebView Android 74 Chrome Android 74
74
不支持 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 65
Disabled
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 48
Disabled
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 Samsung Internet Android 11.0
features
Chrome 74 Edge 79 Firefox 70
Disabled
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 Opera 62 Safari No WebView Android 74 Chrome Android 74 Firefox Android No Opera Android No Safari iOS No Samsung Internet Android 11.0
getAllowlistForFeature
Chrome 74
74
不支持 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 79 Firefox 65
Disabled
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 Opera 62
62
不支持 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 WebView Android 74 Chrome Android 74
74
不支持 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 65
Disabled
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 48
Disabled
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 Samsung Internet Android 11.0

图例

完整支持
完整支持
不支持
不支持
实验。期望将来行为有所改变。
实验。期望将来行为有所改变。
用户必须明确启用此特征。
用户必须明确启用此特征。
使用非标名称。

另请参阅

  1. FeaturePolicy