Misinformation about Permissions Policy and FLoC

This post was written in a hurry in response to some misinformation about Google’s newest Web antifeature, Federated Learning of Cohorts (FLoC). Google’s FLoC is an attempt to track users even when their browsers (rightly) block third-party cookies. The initial blog posts about this issue were quite benign, but online discussions quickly devolved into panic and support for building flawed work-arounds into upstream software. I had to write this before things got out of hand.