syntax: scgi_hide_header name
context: http, server, location
By default, Nginx does not pass headers "Status" and "X-Accel-..." from the SCGI process back to the client. This directive can be used to hide other headers as well.
If the headers "Status" and "X-Accel-..." must be provided, then it is necessary to use directive scgi_pass_header to force them to be returned to the client.