There is an uncaught syntax error coming out of jQuery when you try and click the payment button with text in the promo code field. I'm assuming this is becaus

There is an uncaught syntax error coming out of jQuery when you try and click the payment button with text in the promo code field. I'm assuming this is because I didn't have a valid coupon when hitting `retrieveCoupon` but still, it should display an error message instead of just "not working".