Re: [w3c/browser-payment-api] How will the spec address versioning / feature detection? (#33)

No, you can't feature detect against dictionaries but you can/should against interfaces. This is general best practice for web APIs.

So you can test against for the `shippingAddress` attribute of `PaymentRequest` or the `payerEmail` attribute of `PaymentResponse`.

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Received on Monday, 20 June 2016 19:31:12 UTC