Youtrack behind nginx on a different domain

Hello,

I'm trying to set up YouTrack that is installed on a different machine with nginx. I managed to do this with rundeck that is also on a different domain.

When I go to
https://my_server.com.com:8083/youtrack/,
browser redirects me to
https://my_server.com:8083/rootGo , 
so I think I'd need to change the base URL, but I already have users sitting on youtrack_domain and cannot change it.

Is there anything else I can do? I am able to access static YouTrack resources, like
https://my_server:8083/youtrack/_classpath/images/youtrack512.png

I think this issue was answered for Apache, but I failed to do this with nginx 
https://youtrack-support.jetbrains.com/hc/en-us/community/posts/205789809/comments/205933249

 location / {
     if ($http_referer ~ "^.*/rundeck"){
         return 301 /rundeck$request_uri;
     }
     if ($http_referer ~ "^.*/youtrack"){
         return 301 /youtrack$request_uri;
     }
     location /rundeck/ {
         proxy_pass http://rundeck_domain:4440/;
         client_max_body_size 0;
         proxy_connect_timeout 36000s;
         proxy_read_timeout 36000s;
         proxy_send_timeout 36000s;
         send_timeout 36000s;
     }
     location /youtrack/ {
         proxy_set_header X-Forwarded-Host $http_host;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
         proxy_set_header X-Forwarded-Proto $scheme;
         proxy_http_version 1.1;
         client_max_body_size 10m;
         proxy_pass http://youtrack_domain:43088;
     } 
 }