ISA Server 2004 SP2 bails on http://www.delta.com

I recently bumped into this annoying little problem with ISA Server 2004 SP2 where you get an error message when attempting to access http://www.delta.com.  The error message is The HTTP request includes a non-supported header.

 

As described in the following news group posting, there is a hot fix available that resolved the issue for me.  When calling Microsoft reference kb article 915045.

 

http://groups.google.com/group/microsoft.public.isaserver/browse_thread/thread/139732a3cefacbda/932e408b88f8b7d3?lnk=st&q=The+HTTP+request+includes+a+non-supported+header.+Contact+your+ISA+Server+administrator.&rnum=2&hl=en#932e408b88f8b7d3