Redirect initial request to a different URL

Just set a variable and check for that first, for example;

when CLIENT_CONNECTED {
 set firsttime 1
 }
when HTTP_REQUEST {
 if { ([HTTP::uri] starts_with "/context/first.jsp"} && ($firsttime equals 1) } {
  set firsttime 0
  HTTP::uri /context/login.jsp
           pool pool_80
}

There's probably a better way but all I can think of right now. Not sure if it'll break if a second TCP connection is opened.