Can't set redirection port to the port from the "Host" request header field

[exap@…]

Currently you can't set the redirection port to the one that is specified by the HTTP Host field. There should be another possible value for port_in_redirection that does exactly this.

Example: The client requests path /test from the host example.com:4545. The server now responds with a redirection to the location ​http://example.com:4545/test2

Also, compare server_name_in_redirect and port_in_redirect, they strangely do very different things altough their names are similiar:

• server_name_in_redirect on means the server name specified by the server_name directive is used
• server_name_in_redirect off means the server name specified in the "Host" request header field is used

but

• port_in_redirect on means the port specified by the listen directive is used
• port_in_redirect off means that no port is send

This is not intuitive and also misleading because server_name_in_redirect off actually sends a server name in the redirection packet..

[Maxim Dounin]

See also #1000.

[Maxim Dounin]

See also #1526.