How to Add a query string to a pass to a pool

Presently, I have the following iRule attached to the VS and the iRule correctly redirected to the specified url but This page can't be displayed error came up. What am I doing wrong please or what more do I need to add?

when HTTP_REQUEST {
  set query_args "http://10.10.1.57:9001/forms/frmservlet?config=ref&serveruserparams=NLS_LANG=AMERICAN_AMERICA.AR8MSWIN1256&otherparams=P_WST_LAN_IND=1+P_BANKS_APP_URL=http://10.10.1.57:9001/banks"
     HTTP::redirect "$query_args" 
}