See also: IRC log
https://9to5mac.com/2016/10/05/how-to-use-apple-pay-web-safari/
https://support.apple.com/en-us/HT201239
https://support.apple.com/en-us/HT201239
https://developer.apple.com/reference/applepayjs/
https://cardnotpresent.com/shopify-notes-apple-pays-impact-on-conversion/
"Our merchants are seeing up to twice as many conversions on mobile than without Apple Pay."
<Ken> https://www.paymentssource.com/news/apple-pay-falls-short-of-hype-wsj
<Ken> https://www.shopify.com/blog/120261189-conversion-rate-optimization
<scribe> ACTION: Ian to contact WG participants to see if they have any preliminary conversation info (either for PR API or similar systems) [recorded in http://www.w3.org/2017/04/07-wpwg-minutes.html#action01]
<trackbot> 'Ian' is an ambiguous username. Please try a different identifier, such as family name or username (e.g., IFSF-EFT-WG-Lead, ijacobs, ijmad).
https://www.w3.org/2014/10/html5-rec.html.en
IJ: Planning to ask for a testimonial
https://github.com/w3c/payment-request-info/wiki/DeveloperGuides
https://samsunginter.net/examples/payment-request-demo-simple/
https://help.shopify.com/api/tutorials/sell-through-the-checkout-api