Access-Control-Request-Method

The 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 as the preflight request is always an OPTIONS and doesn't use the same method as the actual request.

Header type Request header
Forbidden header name yes

Syntax

Access-Control-Request-Method: <method>

Directives

<method>
One of the HTTP request methods, for example GET, POST, or DELETE.

Examples

Access-Control-Request-Method: POST

Specifications

Specification Status Comment
Fetch
The definition of 'Access-Control-Request-Method' in that specification.
Living Standard Initial definition.

Browser compatibility

BCD tables only load in the browser

See also