As of dbFront 1.1.3.0189, the Server Directed Stored Procedure output option can also accept the "OpenUrl" action.
The first parameter is the Url and the second parameter is the Target. dbFront will parse the output from the Stored Procedure and open the specified Url with the given Target.
The stored procedure must return
Action Url Target
========== ===================== ========
OpenUrl Http://dbFront.com NewTab
Valid options for the Target are: Redirect, Dialog or NewTab.
For more details see: Run Procedure