在此页

• FeaturePolicy Methods
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

FeaturePolicy 接口在 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	注释
Feature Policy	编者草案	初始定义。

浏览器兼容性

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. 更新 GitHub 上的兼容性数据

	桌面						移动
	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 启用 ). 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 ). To change preferences in Chrome, visit	Edge 79	Firefox 65 Alternate Name Disabled 65 Alternate Name Disabled Alternate Name Uses the non-standard name: Policy Disabled ). 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 启用 ). 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 启用 ).	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 启用 ). 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 ). To change preferences in Chrome, visit	Firefox Android 65 Alternate Name Disabled 65 Alternate Name Disabled Alternate Name Uses the non-standard name: Policy Disabled ). 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 启用 ).	Safari iOS No	Samsung Internet Android 11.0
allowedFeatures	Chrome 74 74 不支持 69 — 73 Disabled Disabled ). To change preferences in Chrome, visit	Edge 79	Firefox 65	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 启用 ).	Safari No	WebView Android 74	Chrome Android 74 74 不支持 69 — 74 Disabled Disabled ). To change preferences in Chrome, visit	Firefox Android 65	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 启用 ).	Safari iOS No	Samsung Internet Android 11.0
allowsFeature	Chrome 74 74 不支持 69 — 73 Disabled Disabled ). To change preferences in Chrome, visit	Edge 79	Firefox 65	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 启用 ).	Safari No	WebView Android 74	Chrome Android 74 74 不支持 69 — 74 Disabled Disabled ). To change preferences in Chrome, visit	Firefox Android 65	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 启用 ).	Safari iOS No	Samsung Internet Android 11.0
features	Chrome 74	Edge 79	Firefox 70	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 ). To change preferences in Chrome, visit	Edge 79	Firefox 65	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 启用 ).	Safari No	WebView Android 74	Chrome Android 74 74 不支持 69 — 74 Disabled Disabled ). To change preferences in Chrome, visit	Firefox Android 65	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 启用 ).	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

• Feature-Policy
• Privacy, permissions, and information security

元数据

• 最后修改： Jan 23, 2020

相关话题

1. FeaturePolicy