The HTTP Access-Control-Request-Method is used by browsers when issuing a 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 and doesn’t use the same method as the actual request.

Syntax

Access-Control-Request-Method: <method>

Directives

• <method>

  • : An HTTP request method; for example, , , or .

Examples

Access-Control-Request-Method: POST

Specifications

Browser compatibility

See also