Delphi 10.3.3, Web Core 220.127.116.11
Create new project, then drop a simple TWebButton on the form, and add a single showmessage command in the click events of both the form and the button.
Now, when running on a desktop browser like Firefox or Chrome, both the form and the button click events are fired.
But when running on an iPad (Air 3 with latest iPadOS 14.4), only the button click event is fired, the form click event is ignored.
As far as I can remember, this once worked. But I don't know if it broke when switching from Web Core 18.104.22.168 to 22.214.171.124 or when updating the iPadOS.