I have a domain based proxy setup and using an authorization rule am
redirecting to another URL, ie www.abc.com goes to www.abc.com/site1.

Thats all good and working, however now the users are complaining that
they can see the /site1 in the URL, so I need some way to redirect to
the /site1 URL and then remove it from the URL bar. I'm not even sure
this is possible as i've been staring at it too long, anyone have any