Use cart url instead of refferrer for add coupons

wp-e-commerce / WP-e-Commerce

WP eCommerce - The most popular independent eCommerce platform for WordPress

https://wpecommerce.org

GNU General Public License v2.0

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Closed mihaijoldis closed 7 years ago

mihaijoldis commented 7 years ago

Just to be safe in case the wp_get_referer() returns false (just happened)