Does that mean that the Google+ button is coming back? Seriously? Why not just serve the content and leave it at that? Is the tiny bit of extra data you get from a unique "share on Facebook" URL worth it?
I didn't know the Web Share API existed, but based on the RFC, it looks like yet another Google-driven "standard." I still don't see why it needs to be added to the page.
> The Navigator.share() method invokes the native sharing mechanism of the device as part of the Web Share API.