在此页

• 句法
• 规范
• 浏览器兼容性
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

featurePolicy 只读特性在 HTMLIFrameElement interface returns the FeaturePolicy interface which provides a simple API for introspecting the feature policies applied to a specific frame.

句法

var policy = HTMLIFrameElement.featurePolicy
					

值

A FeaturePolicy object that can be used to inspect the Feature Policy settings applied to the frame.

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 on 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 Chrome Platform Status incorrectly describes this variable as document.policy . It was renamed in bug 917057 before being shipped in bug 703703 . 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 79 Edge Platform Status incorrectly describes this variable as document.policy . It was renamed in bug 917057 before being shipped in bug 703703 .	Firefox 69 Disabled 69 Disabled Disabled From version 69: 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. 不支持 65 — 69 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 74 Chrome Platform Status incorrectly describes this variable as document.policy . It was renamed in bug 917057 before being shipped in bug 703703 .	Chrome Android 74 74 Chrome Platform Status incorrectly describes this variable as document.policy . It was renamed in bug 917057 before being shipped in bug 703703 . 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

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。

见实现注意事项。

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。

元数据

• 最后修改： Jul 19, 2019

相关话题

1. HTMLIFrameElement
2. 特性

   1. allowPaymentRequest
   2. contentWindow
   3. csp
   4. featurePolicy
   5. referrerPolicy
3. 方法

   1. setNfcFocus()
4. 继承：

   1. HTMLElement
   2. 元素
   3. 节点
   4. EventTarget