redirecting cgi via post method

Greetings,

   I have a CGI that receives some parameters, and after processing  
them (it generates a file) it must be redirected to another CGI  
(external domain) to process it.

   What I want to do is similar to
      
redirect("http://somedomain.com/cgi-bin/myscript.cgi?param1=some&param2=stuff");

but using POST method instead of GET.


At first point, I imagine a solution with LWP::UserAgent using the  
POST method for the new user agent; but later, I don't know how to be  
redirected to the new address.

   my $ua_this = LWP::UserAgent->new;
   $ua_this->post("http://somedomain.com/cgi-bin/myscript.cgi", [
     param1 => "some",
     param2 => "stuff"
     ] );

  redirect($ua_this); # <-this? I don't think so


Any help will be appreciated.


Alejandro