Cory,
I was able to test this and it's still not redirecting. I took a pcap and found something that seems interesting:
GET /Doc1/Login.aspx HTTP/1.1
Accept: image/jpeg, image/gif, image/pjpeg, application/x-ms-application, application/xaml+xml, application/x-ms-xbap, /
Accept-Language: en-US
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET4.0C; .NET4.0E)
Accept-Encoding: gzip, deflate
Host: HostName.DomainName.com
Connection: Keep-Alive
HTTP/1.1 200 OK
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
X-UA-Compatible: IE=9
Date: Fri, 09 May 2014 17:15:47 GMT
Content-Length: 263
the redirect seems to be part of the payload through a java script, so I think this is the reason the iRule didn't work with this VIP.