Exchange iApp OWA irule Modification for Enterprise Vault

I'm using the same VS the Exchange iPP created for all mail services. OA, OWA, AD, AS. I'm just trying to add another pool and use the same VS and URL but look for /enterprisevault. I have my new iRule in top of iRule order under the VS. I see the irule gets hit but no traffic from LTM to the server, when watching tcpdump. I just tried this irule also. ______________________________________________________________________________ hen HTTP_REQUEST { route to pool based on URI value switch -glob [string tolower [HTTP::uri]] { "/enterprisevault*" { pool exchange-mail_enterprisevault } }