This specification standardizes an API to allow merchants (i.e. web sites selling physical or digital goods) to utilize one or more payment methods with minimal integration. User agents (e.g., browsers) facilitate the payment flow between merchant and user.
W3C Working Draft 28 July 2017
https://www.w3.org/TR/payment-request/
https://alligator.io/js/payment-request-api-intro/
W3C Working Draft 28 July 2017
https://www.w3.org/TR/payment-request/
https://alligator.io/js/payment-request-api-intro/