请求头 Access-Control-Request-Headers 出现于 preflight request （预检请求）中，用于通知服务器在真正的请求中会采用哪些请求头。
| 报头类型 | Request header |
|---|---|
| Forbidden header name | yes |
语法
Access-Control-Request-Headers: <header-name>, <header-name>, ...
指令
- <header-name>
- 在实际请求中将要包含的一系列 HTTP 头，以逗号分隔。
示例
Access-Control-Request-Headers: X-PINGOTHER, Content-Type
规范
| 规范 | 状态 | 注释 |
|---|---|---|
| Fetch Access-Control-Request-Headers |
Living Standard | Initial definition. |
浏览器兼容性
The compatibility table in 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.
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| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Access-Control-Request-Headers | Chrome Full support 4 | Edge Full support 12 | Firefox Full support 3.5 | IE Full support 10 | Opera Full support 12 | Safari Full support 4 | WebView Android Full support 2 | Chrome Android Full support Yes | Firefox Android Full support 4 | Opera Android Full support 12 | Safari iOS Full support 3.2 | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support