Sec-Fetch-Mode

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨2023年3月⁩.

Sec-Fetch-Mode 获取元数据标头表明了一个请求的模式。

Header type	Fetch Metadata Request Header
Forbidden header name	只要包含前缀 `Sec-` 都属于应用程序禁止修改的 HTTP 消息头，用户代理保留全部对它们的控制权
CORS-safelisted request header

语法

Sec-Fetch-Mode: cors
Sec-Fetch-Mode: navigate
Sec-Fetch-Mode: nested-navigate
Sec-Fetch-Mode: no-cors
Sec-Fetch-Mode: same-origin
Sec-Fetch-Mode: websocket