use strict;
use CGI ":standard";

# Lots of logic that somewhere results in printing a header...
print header();

# And THEN you try to redirect....
my $url = "http://Myserver/Travel/cgi-bin/A.cgi/";
print "Location: $url\n\n";
exit;

##</code><code>##

Content-Type: text/html; charset=ISO-8859-1

Location: http://Myserver/Travel/cgi-bin/A.cgi/