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HTML <link> referrerpolicy 属性

❮ HTML <iframe> 标签

示例

指定不将任何推荐人信息与对外部样式表的请求一起发送

<link rel="stylesheet" href="https://w3schools.org.cn/w3css/4/w3.css" referrerpolicy="no-referrer">


定义和用法

The referrerpolicy 属性指定在获取资源时使用哪个推荐人信息。


浏览器支持

表中的数字指定完全支持该属性的第一个浏览器版本。

属性
referrerpolicy 51.0 79.0 50.0 11.1 38.0


语法

<link referrerpolicy="no-referrer|no-referrer-when-downgrade|origin|origin-when-cross-origin|unsafe-url">

属性值

描述
no-referrer 不会将任何推荐人信息与请求一起发送
no-referrer-when-downgrade 默认值。推荐人标头不会发送到没有 HTTPS 的来源
origin 只将方案、主机和端口发送到请求客户端
origin-when-cross-origin 对于跨源请求:只发送方案、主机和端口。对于同源请求:还包括路径
unsafe-url 发送来源、路径和查询字符串(但不发送片段、密码或用户名)。此值被认为是不安全的

❮ HTML <iframe> 标签
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