__XUrl is not defined

ASProxy       :version 5.5.0

Last update   :2010/07/13

I have downloaded a pre-compiled website and have properly setup everything in my localhost in a port. The site itself has no problem but when I try to browse some sites for. eg. http://getbootstrap.com/getting-started/  I get that _XUrl is not defined in script files. This seems to be problem as Asproxy replaces window.location with this variable which is obviously not defined anywhere.

Am I missing something?

Thanks in advance