Prevent showthread.php?goto=newpost&t=X changing domain

[need2fart]

Hello. I am using a reverse proxy to serve ssl on my site but I have ran into a problem with clicking on new links ending in showthread.php?goto=newpost&t=X

The default domain setting on the site is http://domain.com/

To access ssl on my site I use the subdomain https://ssl.domain.com/

When accessing the subdomain all the links on the page are now https://ssl.domain.com/

Clicking any link while on the subdomain stays on that subdomain except for clicking on new posts.

Here is a picture better explaining what I mean:



In the above picture yellow boxes are okay. The red box is not okay.

Hovering over the red box link displays

https://ssl.domain.com/showthread.php?goto=newpost&t=6

When clicking on the red box shown in the picture the page goes to the new post, but it redirects into the site domain. Back to http://domain.com


How can I maintain the subdomain when clicking on new posts?