Chrome already defaults to loading pages over HTTPS (rather than the once-standard and less-secure HTTP) protocol, assuming the destination has an HTTPS-secured page. But Chrome 94 will take that lean-into-HTTPS one step further with what Google’s calling “HTTPS-First” mode.
If HTTPS-First is enabled — it will be off by default — Chrome will try to upgrade all page loads to HTTPS and if unsuccessful, display a full-screen warning before allowing a click-through to the HTTP destination. HTTPS-First is thus a more aggressive version of what Chrome now delivers: It puts every page through the HTPP-or-HTTPS check and posts an alert for the non-compliant destinations.
Google said that a group policy would be available to enterprise IT to disable the HTTPS-First mode.