Chrome users no longer allowed to automatically show the www trivial subdomain in the address bar. This means that if you are visiting www.bleepingcomputer.com, Chrome would only show bleeping.com. Google engineer: www is considered a trivial sub domain because “this isn’t information that most users need to concern themselves with in most cases”” Chrome users can no longer use the #omnibox-ui-hide-steady-state-url-trivial-subdomains flag.”
Source: https://www.bleepingcomputer.com/news/google/google-achieves-its-goal-of-erasing-the-www-subdomain-from-chrome/