Re: [w3c/payment-request] wip: allow show() to take optional promise (#668)

@domenic, hopefully I understood correctly and you wanted me to drop the "in parallels", right? You are correct that the state machine should handle the signaling to the UI thread while allowing all this to run on the main thread (and just waiting for the `detailsPromise` to settle). 

Giving it another read... to see if it makes sense. 

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Received on Monday, 22 January 2018 04:52:02 UTC