页面设计可以防止冗余+相同的电子商务订单

noob question: I'm building a checkout system for an online commerce site. I'm getting the bug where clicking on the "place order" button multiple times will place the order multiple times. I have an idea to load between the button-click page and place-order page with a page that waits several seconds before launching using javascript the place-order page.noob question: I'm building a checkout system f