[w3c/browser-payment-api] Shouldn't HTMLIFrameElement. allowPaymentRequest go into "sandbox"? (#311)

I'm wondering what the rationale is for having an attribute on `HTMLIFrameElement` (`.allowPaymentRequest`), instead of using the `sandbox` attribute (i.e., `sandbox='allow-payment-request'`)? 

I can see there is precedence here with `.allowFullScreen` tho, but consistency would be good. 

cc @mikewest @foolip

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/w3c/browser-payment-api/issues/311