如何在成功的贝宝付款上发布表格？

我的 HTML 页面上有一个包含贝宝按钮和贝宝信用卡按钮的表单。这是一个简单的 HTML、JS 站点，而不是网络商店。成功付款后如何以编程方式发布表格？我的onApprove部分在下面不起作用。* 目前只设置了贝宝沙箱帐户。

paypal.Buttons({
            style: {
                layout: 'vertical',
                color: 'black',
                shape: 'rect',
                label: 'paypal',
                height: 45
            },
            createOrder: function (data, actions) {
                // This function sets up the details of the transaction, including the amount and line item details.
                return actions.order.create({
                    purchase_units: [{
                        amount: {
                            value: total
                        }
                    }]
                });
            },
            onApprove: function (data, actions) {
                // This function captures the funds from the transaction.
                return actions.order.capture().then(function (details) {
                    // This function shows a transaction success message to your buyer.
                    $('#orderForm').submit();
                });
            }
            //fundingSource: paypal.FUNDING.PAYPAL
        }).render('#paypal-button-container');