[w3c/payment-request] onpaymentchange event to validate payment details (#634)

Use case: right now the user can enter anything as their name within a payment method. However, some payment processors require a FirstName + LastName. One would think that most users do enter both, but one of our partners has seen orders failing within the first day of launching PR due to users not adding a last name.

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https://github.com/w3c/payment-request/issues/634

Received on Friday, 29 September 2017 01:40:34 UTC