Earlier quoted context omitted.
That's a relief. We've built our business on our PWA, which also has an offline mode. It would be annoying if we had to adjust it for (yet another) Safari quirk.
Except that by "Safari quirk" you mean "the way that all common browsers are heading". Safari is the first here. Firefox is certain to be right behind them. Google, probably not, but I bet Edge does the same thing before too long.
[1] - https://www.theverge.com/2020/1/14/21064698/google-third-par...