GWMC HTTP redirection on port 8120

Not sure if someone can answer this, but I am trying to make it so customers can log into their admin portal for GWMC.

The problem I'm having is, if the customer browser is sent via http on 8120 it gets redirected to https on the host IP address and you get a certificate error because its not using the server host name.

i.e. -->

Does anybody know an easy way to do this within gwmc? I know I can do a JavaScript rewrite, but since GWMC is already doing the redirect, I want it to go to the syntax.