You might be part a special cohort with early access to this 'feature'. There are a couple ways to do it. For example, you can track incog users by abusing cer

You might be part a special cohort with early access to this 'feature'. There are a couple ways to do it. For example, you can track incog users by abusing cert pinning with HPKP report URIs. Expect-CT (the successor to HPKP) would also be vulnerable to this attack.