Access-Control-Request-Method
请求头
Access-Control-Request-Method 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种 HTTP 方法。因为预检请求所使用的方法总是 OPTIONS ，与实际请求所使用的方法不一样，所以这个请求头是必要的。| Header type | Request header |
|---|---|
| Forbidden header name | yes |
语法
Access-Control-Request-Method: <method>
指令
示例
Access-Control-Request-Method: POST
规范
| Specification | Status | Comment |
|---|---|---|
| Fetch Access-Control-Request-Method |
Living Standard | Initial definition. |
浏览器兼容性
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