UserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Safari/605.1.15

Steps to reproduce the problem:
This will be covered automatically by a web platform test.

What is the expected behavior?

What went wrong?
The implementation does not match the spec. 

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version:   Channel: canary
OS Version: OS X 10.14
Flash Version: 

Please see https://github.com/w3c/payment-request/pull/805