As far as I can tell, it's not enabled in the beta, but looks like it's available on the Safari Technical Preview on the Mac behind a flag: https://developer.a

As far as I can tell, it's not enabled in the beta, but looks like it's available on the Safari Technical Preview on the Mac behind a flag: https://developer.apple.com/safari/technology-preview/release-notes/ https://developer.apple.com/safari/technology-preview/releas...