From bug 24943: "Mac only. See the attached file. Pressing Command-B or Command-I while in a rich text area does not generate a keydown, keypress, or keyup event. Command-U gives keydown and keypress, but not keyup." Looks like keyup is still an issue.
<rdar://problem/9708212>
Any update on this issue? It is causing problems for noVNC: https://github.com/novnc/noVNC/issues/1695 The issue is also present on all other browsers: https://bugs.chromium.org/p/chromium/issues/detail?id=1393524 https://bugzilla.mozilla.org/show_bug.cgi?id=1802465 This page can be used for easy testing of this issue: https://w3c.github.io/uievents/tools/key-event-viewer.html