Caniuse: Safari 12 doesn't support SameSite cookie attribute properly

[fjsj]

There's a iOS Safari 12 issue that prevents common flows (sequences of requests) to work properly if there's SameSite=lax on cookies. This issue was confirmed by Daniel Bates, from Apple and it's still open.

Therefore, in my opinion, Safari 12 support of 'SameSite' cookie attribute should be Partial.

[fjsj]

Issue confirmed again by WebKit team: https://bugs.webkit.org/show_bug.cgi?id=196375

[Sora2455]

Safari 12 also treats SameSite=None as SameSite=Strict (bug), which is going to make Chrome's plan to make SameSite cookies lax by default rather painful...