Having a similar issue with localhost
Inserted the code
<?php
error_reporting(E_ALL);
ini_set('display_errors','on');
?>
both these messages appear at the top when add to cart button is pressed and there is no redirect to cart.php on localhost
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /Applications/MAMP/htdocs/NBA/products.php:1) in /Applications/MAMP/htdocs/NBA/WA_eCart/WA_eCart_Definition_PHP.php on line 465
Warning: Cannot modify header information - headers already sent by (output started at /Applications/MAMP/htdocs/NBA/products.php:1) in /Applications/MAMP/htdocs/NBA/products.php on line 1474
yet when uploaded to a remote test server the button works fine with redirect. Should I be concerned. Regards John