RedirectUrls Being Called, onAuthorize Function Ignored

Question

According to the documentation on PayPal's Developer site under Advanced server integration, redirect URLs must be provided in a payment call but:

(…) PayPal does not automatically call these URLs. PayPal invokes your onAuthorize function when the buyer authorizes the payment. that are provided will not be used.

So I developed my code assuming this to be true, and on my local setup this works fine. But when I push it to my staging server, the redirect URLs being passed in the SDK are being called, and my onAuthorize function ignored. It's even opening a new popup window and then opening my payment-execute.php script there, with appended GET queries, ignoring my POSTed values.

Here's a sample of the JS I'm using:

paypal.Button.render({

    env: 'sandbox',

    payment: function(resolve, reject) {

        paypal.request.post(
            '/path-to-inc/payment.php',
            {
                action: 'create_paypal_payment',
                orderId: order_id,
                postId: post_id,
            }
        )
        .then(function(data) {
            resolve(data.paymentID);
        })
        .catch(function(err) {
            reject(err);
        });
    },

    onAuthorize: function(data) {

        paypal.request.post('/path-to-inc/payment-execute.php',
            {
                paymentID: data.paymentID,
                payerID: data.payerID,
                postId: post_id
            })

            .then(function(data) {
                window.location.reload();
            })

            .catch(function(err) {
                console.log('Error');
        });
    }

}, '#paypal-button');

And a snippet from the PHP file:

$redirectUrls = new RedirectUrls();
$redirectUrls->setReturnUrl('http://website.com/payment-execute.php')
    ->setCancelUrl('http://website.com/checkout');

$payment = new Payment();
$payment->setIntent('sale')
    ->setPayer($payer)
    ->setRedirectUrls($redirectUrls)
    ->setTransactions(array($transaction));

try {

    $payment->create($apiContext);

    echo json_encode( ['paymentID' => $payment->id] );

} catch (Exception $e) {

    error_log( 'Payment error: ' . $e->getMessage() );
}

Answer 1

I have the same issue since 1 day ago, I was working with onAuthorize call in old tests

Edit 1: Well testing with the old script versions and I get the expected result using this one https://www.paypalobjects.com/api/checkout.4.0.38.js