Re: [w3c/payment-method-basic-card] Brand selection (#49)

@mattsaxon, @glelouarn, @vkuntz, here is a draft FAQ entry. Comments welcome,
Ian

Q. Does Payment Request API support user choice of processing path when more than one is possible?

A. No. In some situations, there may be more than one way to process a payment. For example, a user in France might have a card that can be processed either as "Visa" (same with "Mastercard") or "Carte
Bancaire." Users may have different incentives for choosing a processing path (e.g., costs or loyalty programs). 

Under some regulations (e.g., in Europe since 2018), merchants may be required to offer the user a choice of processing path. At this time, Payment Request API does not direct support this type of choice. More specifically, the Basic Card Specification does not support response data about processing choice, which means that even if a payment handler were to offer such a choice, the handler could not return the relevant information in the Basic Card response. 

At this time, the Web Payments Working Group recommends that merchants and users determine 
processing choice following completion of Payment Request API.

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Received on Friday, 4 May 2018 18:55:31 UTC