Access-Control-Request-Method header

The HTTP Access-Control-Request-Method request header is used by browsers when issuing a preflight request to let the server know which HTTP method will be used when the actual request is made. This header is necessary because the preflight request is always an OPTIONS and doesn't use the same method as the actual request.

Header typeRequest header
Forbidden request headerYes

Syntax

http
Access-Control-Request-Method: <method>

Directives

<method>

An HTTP request method; for example, GET, POST, or DELETE.

Examples

http
Access-Control-Request-Method: POST

Specifications

See also