It’s listed on Safari’s site https://webkit.org/tracking-prevention/#partitioned-third-party-http-cache https://webkit.org/tracking-prevention/#partitioned-thir

It’s listed on Safari’s site https://webkit.org/tracking-prevention/#partitioned-third-party-http-cache https://webkit.org/tracking-prevention/#partitioned-third-pa... Safari has been doing this since 2013 https://bugs.webkit.org/show_bug.cgi?id=110269 https://bugs.webkit.org/show_bug.cgi?id=110269 Tweeted about in 2017 https://twitter.com/cramforce/status/849621456111624192 https://twitter.com/cramforce/status/849621456111624192