I just spun on the latest stable geoserver container, it's front-ended by a 
NGINX proxy using SSL. Initial connections created an endless redirect loop. 
Has anyone else encountered this? From what I can tell it's being caused by 
Geoserver itself. 

NGINX Rules

  location /geoserver/ {
    proxy_pass            http://127.0.0.1:8081/geoserver/;
    proxy_set_header      X-Forwarded-Proto https;
    proxy_set_header      X-Real-IP $remote_addr;
    proxy_set_header      Host $host;
    proxy_set_header      X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header      X-Forwarded-Host $host;
  }

In Geoserver I've set "Use Headers for Proxy URL" and even for kicks restarted 
the container after it's been applied. The result is that the geoserver web app 
never stops sending new redirects. 

GET /geoserver/
REDIRECT /geoserver/web
GET /geoserver/web
REDIRECT /geoserver/web/?10
GET /geoserver/web/?10
REDIRECT /geoserver/web/?10?0%3F0

and so on, ending only when the URL length/redirect limit is exceeded. 
Containers logs show the proper headers are being send to the geoserver 
instance by NGINX, but in the browser after each GET request geoserver returns 
a redirect, with an appended value. (geoserver not NGINX). 

Tunnelling the internal port locally, and hitting it directly works perfectly. 
Removing SSL also works flawlessly. Of note the returned redirects are 
incorrect they are http://$host instead of https://$host. The redirect for http 
-> https is rewrite ^ https://$host$request_uri permanent;

Any help is appreciated. 

-Karl

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