Access-Control-Request-Headers

The Access-Control-Request-Headers request header is used when issuing a preflight request to let the server know which HTTP headers will be used when the actual request is made.

Syntax

Access-Control-Request-Headers: <header-name>, <header-name>, ...

Directives

<header-name>

A comma-delimited list of HTTP headers that are included in the request.

Examples

Access-Control-Request-Headers: X-PINGOTHER, Content-Type

Specifications

Browser compatibility

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.

See also

• Access-Control-Request-Method