>In short, Apple’s mobile version of Safari broke with common web practice, and as a result, it broke Google’s normal approach to engaging with consumers.
I’d have used “tracking” in place of “engaging with”, but that’s semantics
Actually, it does break Google's way of engaging with consumers. +1 buttons (as well as Facebook Like, Diqus comments etc) require 3rd party cookies.
Actually, no it doesn't, because people only need to see those buttons if they already have a relationship with the service in question.
Example: I don't have a Google+ account, so I don't need to see the +1 button. If you have a Google+ account, you would have a cookie, and thus be able to see the +1 button.
I’d have used “tracking” in place of “engaging with”, but that’s semantics
Actually, it does break Google's way of engaging with consumers. +1 buttons (as well as Facebook Like, Diqus comments etc) require 3rd party cookies.