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
| Feature |
Chrome |
Edge |
Firefox |
Internet Explorer |
Opera |
Safari |
| Basic support |
4 |
12 |
3.5 |
10 |
12 |
4 |
| Feature |
Android webview |
Chrome for Android |
Edge mobile |
Firefox for Android |
IE mobile |
Opera Android |
iOS Safari |
| Basic support |
2.1 |
Yes |
Yes |
4 |
Yes |
12 |
3.2 |
See also