title: Using sendRedirect - hide parameters
body: <p>My problem is:
  I have a jsp application which play the role of a tunnel to only redirect the process to an externel application after it gets the login from the cookie.
  thus, my JSP application doesn't contain any forms.
  http://xxxxx:8080/who/app?login=" + userid);
  ?>
  as I told you, xxxxx is a remote host.
  When I execute this process, we can see the "userid" in the URL.
  My question here how can we hide the login from the url with the configurutaion already described.</p>
  
  <p>Thank you in advance</p>