我有一个网站,客户来购买任何产品。但也有一些顾客在没有购买的情况下关闭了账单。我不想失去那些顾客。所以i have decided to provide offers for those customers in the "modal" popup. This popup has to be displayed once the customer clicks the close button in the browser。此popup will have a form选择报价,填写其联系方式并提交表格。表单提交后,窗口可以自动关闭。是否有可能提供这样的弹出模式。我已经对这件事