[codedokode]

The real reason to make this spec is not to improve integrity o privacy or something else but to make users stay on Google's domain instead of going to other site. Google wants to build its little walled garden, and this spec is needed to make users think that the walls aren't there.

> With this setup, documents can be prefetched while preserving user privacy and after the user clicks all browser behavior continues as normal from that point forward.

But Google can already preload and show cached version of the page without this spec. The only difference would be that address bar shows "google.com" instead of publisher's domain. There is no need for this specification.