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HTML <iframe> referrerpolicy 属性

❮ HTML <iframe> 标签

示例

指定不将任何推荐者信息与请求一起发送

<iframe src="https://w3schools.com/" referrerpolicy="no-referrer"></iframe>
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定义和用法

The referrerpolicy 属性指定在获取 iframe 时要发送哪些推荐者信息。


浏览器支持

表格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

<iframe referrerpolicy="no-referrer|no-referrer-when-downgrade|origin|origin-when-cross-origin|same-origin|strict-origin-when-cross-origin|unsafe-url">

属性值

描述
no-referrer 不将任何推荐者信息与请求一起发送
no-referrer-when-downgrade 默认值。不会将推荐者标头发送到没有 HTTPS 的来源
origin 仅将方案、主机和端口发送到请求客户端
origin-when-cross-origin 对于跨源请求:仅发送方案、主机和端口。对于同源请求:还包括路径
same-origin 对于同源请求:将发送推荐者信息。对于跨源请求:不会发送任何推荐者信息
strict-origin 仅在安全级别相同的情况下发送推荐者信息(例如,HTTPS 到 HTTPS)。不要发送到安全性较低的目的地(例如,HTTPS 到 HTTP)
strict-origin-when-cross-origin 执行同源请求时发送完整路径。在安全级别保持不变的情况下(例如,HTTPS 到 HTTPS)发送仅发送源。不要发送到安全性较低的目的地(HTTPS 到 HTTP)
unsafe-url 发送源、路径和查询字符串(但不包括片段、密码或用户名)。此值被认为是不安全的

❮ HTML <iframe> 标签
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