Hovering over inspector triggers hover event on webpage
There's some sort of interplay between mouse position on the debug console and the webpage, so if you hover at X,Y on the debug inspector it will trigger hover events at X,Y on the actual webpage. I'll include screenshots to show what I mean. Note that my cursor on the bottom left is somehow selecting parts of the webpage at the corresponding location.
$ uname -a
Linux samus 4.18.12-arch1-1-ARCH #1 SMP PREEMPT Thu Oct 4 01:01:27 UTC 2018 x86_64 GNU/Linux
$ pacman -Qs epiphany
local/epiphany 3.30.1-1 (gnome)
A GNOME web browser based on the WebKit rendering engine