Hi, when you set the cookie's domain, you wrongly strip the subdomain www hence I can't use cookie free subdomain in my website:
$domain_url = $_SERVER['SERVER_NAME'];
$cookie_domain = str_replace("www","",$domain_url);
setcookie("cart_in_use","true",time()+21600,"/",$cookie_domain); //useful to not serve cached page when using with a caching plugin
Can you please just remove the second line?
Thanks.
http://wordpress.org/extend/plugins/wordpress-simple-paypal-shopping-cart/