Specifying parameters in navigation-cases?

[Qiang Yu]

Hello all,
I am not sure whether it is appropriate to specify parameters in
navigation-cases but I am trying to use it in my project:
...
<navigation-case>
      <from-outcome>Bacillus_anthracis</from-outcome>
      
<to-view-id>/common/misc/redirect.jsp?to=http://www.google.com</to-view-id>
      <redirect/>
</navigation-case>      
...

The redirect.jsp is pretty much simple:

<%@ page language="java" pageEncoding="UTF-8"%>
<%
        String location = request.getParameter("to");
        response.sendRedirect("http://www.google.com";);
        //response.getWriter().write(location);
%>

and I found myfaces changed location from http://www.google.com to
http://www.google.jsf, which makes redirection impossible (though I
solved this problem using some tricks)

But my question is
1. Is it doable/allowable to supply parameters in navigation-cases?
2. If it is, why myfaces should modidy the parameter?

I am using myeclipse 1.1.1

Thanks a lot and have a great weekend :)