[charcircuit]

>My problem here is google's attempt to correlate incognito users to their non-incognito history.

To a web server incognito mode isn't a thing. It's a client only thing. You don't know if a user is using incognito mode, or if they just cleared their cookies / cache. There's no way to know the user's intent.

[nitrogen]

And this is by design (even though it's actually detectable -- try watching Netflix or Amazon, or any similar DRMed content, in incognito mode), because telling the server "hey, I'm in incognito mode" is antithetical to the goal of seeming to blend in.

But I still see a problem with Google's control of both sides of the connection, and with fingerprinting in general.