headers

headers sets or deletes request and response headers.

server:
  http:
    middlewares:
      proxy_headers:
        headers:
          custom_request_headers:
            X-Forwarded-Prefix: /api
          custom_response_headers:
            X-Frame-Options: DENY

Field	Description
custom_request_headers	Headers applied to the request before the next middleware.
custom_response_headers	Headers applied to the response before the next middleware.

Set a header value to an empty string to delete that header.