I’ve enabled the debug logs and the client attempted to make another user-defined amount, USD payment (8/7/18) using an iPhone/Safari/AMEX from the USA.
The payment process failed. There is no record of the attempt in the plugin logs at all. The Stripe.com logs have details for POST/v1/tokens so we know something has been sent, also AMEX is applying a test $1 charge to the customer’s account. Then, nothing happens (nothing else in the logs, no error messages, no indication that anything has failed/succeeded).
Stripe.com says it is something faulty in your plugin.
I successfully complete payment process using a Visa and I have run through every test scenario in test mode. I do not have a live AMEX card and cannot recreate the problem however this customer has now made 3 attempts. The last with the debug logs enabled (where I was hoping we could find a clue to what the problem may be).