I have installed the securepay mod in ZC 1.3.8a and testing works fine. When I go into production mode on the final confirmation in checkout I get the following error: Warning: Header may not contain more than a single header, new line detected. in /home/suplesc/public_html/store/securepay_handler.php on line 18

Line 18 is the last line in the handler file, is there something I am missing.

<?php
/*
#######################################################################
# SecurePay Payment Module v2.0.0
# for ZenCart 1.3.x (may work with earlier versions)
# Initial release: September 23, 2006
#
# v2.0 modifications Copyright 2006 Sara Jacobson, NotGoddess Designs
# http://www.notgoddess.com/designs e-mail:[email protected]
#######################################################################
Released under the GNU General Public License
*/

$foo = 'index.php?main_page=checkout_process';
foreach($_GET as $k => $v) {
$foo .= '&'.$k.'='.$v;
}
header("Location: {$foo}");
?>