Paypal Express checkout + php cURL Execute payment not show payment notification on sandbox
i'm testing paypal integration, in a php demo test on my apache server with a vhost -> test.it/paypal. I use Express Checkout + Server-side REST (cURL). My js Add the PayPal button is: <script> var CREATE_PAYMENT_URL = 'http://test.it/paypal/create-payment.php'; var EXECUTE_PAYMENT_URL = 'http://test.it/paypal/execute-payment.php'; paypal.Button.render({ env: 'sandbox', // Or 'production', commit: true, // Show a 'Pay Now' button locale: 'it_IT', style: { size: 'small', color: 'blue', shape: 'pill', label: 'checkout' }, commit: true, // Show a 'Pay Now' button payment: function() { // Make a