This test verifies that if a payment app rejects the promise passed to respondWith with an OperationError, the original PaymentRequest.show() call also rejects with an OperationError. For other error types, it should still reject with an AbortError.

Please follow these instructions:

1. For the first test (OperationError), click "Reject with OperationError".
2. For the second test (SyntaxError), click "Reject with SyntaxError".