A request headers is an HTTP header that the client sends to the server.
HTTP request headers list | Browser Headers Viewer
| Type | Standard |
| Subype | Fetch |
| Related headers | Access-Control-Allow-Credentials, Access-Control-Allow-Headers, Access-Control-Allow-Methods, Access-Control-Allow-Origin, Access-Control-Expose-Header, Access-Control-Max-Age, Access-Control-Request-Method, Access-Control-Request-Private-Network, Origin |
| Last seen | 2026-03-04 03:07:22 |
| Note | Initiates a request for cross-origin resource sharing with Origin. |
| Syntax | Access-Control-Request-Headers: <header-name>, <header-name> |
Example header value:client-ip,x-forwarded-for,x-real-ip |
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