Hi, I follow the instruction to add paypal button to a html (this html only contain paypal code). I changed client_id to my sandbox id. It works because I got webhook call. But the pop-up window never close. alert should show a small window, but never shows up. What can I do? Any information would be appreciated. Thanks in advance. The code: <script> paypal.Buttons({ 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: '0.01' } }] }); }, 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. alert('Transaction completed by ' + details.payer.name.given_name); }); } }).render('#paypal-button-container'); //This function displays Smart Payment Buttons on your web page. </script>
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