- scroll window into the viewport
- click Popup
- a popup message is shown
The notification will not show on some windows (the 3rd and the last)
All notifications are shown
zk(n).isRealScrollIntoView() returns false, so the notification will not show.
Avoid target components that need to scroll into view.
Only Safari 11 is not affected.
Chrome 61.0.3163.100, Firefox 55.0.3 and IE9 are all affected.
The notification will not show in the last window in Chrome, but other browsers are correct.