I am using Basic PayPal Checkout Button (data-version-4) with jason payload to do a payment against the 'sandbox'. All the code works fine until it gets to the point of 'Confirm' or 'Pay now' within the PayPal-Pop-Up (Lightbox) ... at this point the Pop-Up closes and no further calls are made to the Button (as example: onAuthorize is not initiated).
At this point the console shows several a warning and errors after 3 x apy_retry. Is this a known issue or does someone have a suggestion on this?
Any help is welcome and thank you very much in advance, Christian
UPDATE: in Google Chrome (Version 54) it is possible to complete the payment, i am having the errors just within Firefox V49.0.2
Warning
missing_csrf_jwt Object { timestamp=1479294755397, windowID="5fbc81d2c8", pageID="3768daa62d"}
Error
"NetworkError: 500 Internal Server Error - https://www.sandbox.paypal.com/webapps/hermes/api/payment/PAY-1UH37573M6748251ALAWD6BI?"
http_response_500 Object { timestamp=1479294756872, windowID="5fbc81d2c8", pageID="3768daa62d"}
Response of the GET Payment request from button.js
{"ack":"error","message":"Unhandled api error","meta":{"calc":"5c86b8d3140ef","rlog":"rKGmcXTB%2B2NqZAMhrf0E %2BSi2kRuzAYN1zBd6UkYGjcFtNQ0WfaI3FHIbPIRTaJRcwP4CM4%2FkeW05efr7awS8xw_1586cc53450"},"server":"Wb_7k zG8hs8iXSTxTssRX7gAbhKsGUveN-Qi5qR4xO-eChao8SHpy7dW9-lcr1X7z1Ex578DclpDjpNeK6E56fHpDAqRWL8SI0Od4rpHe HT57pjggRD85TXSwGA9IYgdTw8WLisakLokxa9yxvmsjiYYO9Sf8Hnb4sanRFuPznDh8b4zEXUgz2kxautGGtS3lTXJjgK9TVqouGCqrStk_j4GQC1ssToOZ0n6am" }
Console