This article is wrong in that the generated id is not unique (see yesterday's discussion at <a href="https://news.ycombinator.com/item?id=22236106" rel="nofollow">https://news.ycombinator.com/item?id=22236106</a> ) and Google's statement at <a href="https://www.google.com/chrome/privacy/whitepaper.html#variations" rel="nofollow">https://www.google.com/chrome/privacy/whitepaper.html#variat...</a>. The id certainly makes tracking individual users a lot easier by making their browser fingerprint far more unique.<p>Also there are no headers named "X-Client-header" or "X-Client" that I am aware of. The header name is "X-Client-Data".<p>Users who want/need to stick with Google Chrome for now can change its desktop shortcut to always launch with the parameter “--reset-variation-state”. Yet another hoop to jump through...