Redirecting to a new URL under mod_ruby

Hi,

I'm using Ruby 1.8.1 with mod_ruby 1.2 under apache 1.3.2x on Mac os X 10.3.4.  

I have a cgi script that looks like this: 

#!/usr/bin/ruby

require "cgi"

q = CGI.new
caller_url = q.referer.gsub( /(.*)\?*.*/, '\1' )

# do some work here.... 

print "Location: #{caller_url}\n\n"

What I am trying to accomplish is to have the cgi script do a little work (e.g., delete a record from the database, or add one, etc.) and to then redirect the browser automatically to a new URL, in this case, the one that called it.  The issue is that the above code doesn't seem to work - it just prints the text "Location: http://etc/etc/"

Any advice would be most appreciated.

Thanks,
Nick