在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 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。

HTMLAreaElement .referrerPolicy property reflect the HTML referrerpolicy 属性在 <area> element defining which referrer is sent when fetching the resource.

句法

refStr = areaElt.referrerPolicy;
areaElt.referrerPolicy = refStr;
					

值

• "no-referrer" meaning that the Referer: HTTP header will not be sent.
• "origin" meaning that the referrer will be the origin of the page, that is roughly the scheme, the host and the port.
• "unsafe-url" meaning that the referrer will include the origin and the path (but not the fragment, password, or username). This case is unsafe as it can leak path information that has been concealed to third-party by using TLS.

范例

<img usemap="#mapAround" width="100" height="100" src="/img/logo@2x.png" />
<map id="myMap" name="mapAround" />>
					

var elt = document.createElement("area");
elt.href = "/img2.png";
elt.shape = "rect";
elt.referrerPolicy = "no-referrer";
elt.coords = "0,0,100,100";
var map = document.getElementById("myMap");
map.appendChild(elt);
// When clicked, the area's link will not send a referrer header.
					

规范

规范	状态	注释
Referrer Policy The definition of 'referrerpolicy attribute' in that specification.	候选推荐	添加 referrerPolicy 特性。

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
referrerPolicy	Chrome 51	Edge 79	Firefox 50	IE No	Opera 38	Safari 11.1	WebView Android 51	Chrome Android 51	Firefox Android 50	Opera Android 41	Safari iOS No	Samsung Internet Android 7.2

图例

完整支持

完整支持

不支持

不支持

另请参阅

• HTMLImageElement.referrerPolicy , HTMLAnchorElement.referrerPolicy ，和 HTMLIFrameElement.referrerPolicy .

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. HTMLAreaElement
2. 特性

   1. hash
   2. host
   3. hostname
   4. href
   5. origin
   6. password
   7. pathname
   8. port
   9. 协议
   10. referrerPolicy
   11. rel
   12. relList
   13. search
   14. username
3. 方法

   1. toString()
4. 继承：

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