why webgate port will be forwarded to oam port internally?

Hi all,

I faced to an issue with the webgate and oam port:

1- I send a request for webgate port (oauthservice/authorize):

http://Host:WEBGATE_port/

2-  OAM-OAuth send the request to oauthservice/showconsent and automatically change Webgate-Port to OAM-Port (wrong step)

http://Host:OAM_port/

if I check 2. request manually with Webgate port, the response is correct. But I can not find out how can I adjust the oam-webgate configuration to avaiod change port in 2. step.

Is there any experince available regarding this issue?

thanks in advance,

Moh