Secure payment confirmationThe payment extension of a web authentication credential allows a relying party (such as a bank) to create a credential that can be queried by any merchant origin as part of an online checkout that uses the Payment Request API's secure-payment-confirmation payment method. Also known as SPC.paymentsPaymentslimitedhttps://w3c.github.io/secure-payment-confirmation/https://developer.mozilla.org/docs/Web/API/PaymentRequest/securePaymentConfirmationAvailability_staticapi.CredentialsContainer.create.publicKey_option.extensions.paymentapi.PaymentRequest.securePaymentConfirmationAvailability_statichttps://nowyoucanuse.com/features--secure-payment-confirmation.html