java set response.setHeader Access-Control-Allow-Headers

java

The Access-Control-Allow-Headers header is used in a HTTP response to specify which HTTP headers are allowed in a cross-origin request. It is used in conjunction with the Access-Control-Allow-Origin header, which specifies which origin (e.g., domain) is allowed to make a request to the server.

For example:

response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Headers", "Content-Type");

This will allow any domain to make a request to the server, and the request can include a Content-Type header. You can specify multiple headers by separating them with a comma:

response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");

Note that the Access-Control-Allow-Headers header should be set in the server-side code, not in the client-side code.