Some dropdown lists and menus have the wrong position with WebKit Gtk. I don't have the problem with other GTK+ softwares. It's not related to recent changes, I've got this problem for a long time. The right-click menu can't go higher than the top of my left screen. The select dropdown lists are on the wrong screen. I've got a special screen organization as you can see in the attached screenshots. Sorry :/. The bug had been reported on Epiphany (https://bugzilla.gnome.org/show_bug.cgi?id=787075) but it seems like a problem in WebKit Gtk. Thank you for your hard work on WebKit Gtk!
Created attachment 324123 [details] Right-click menu
Created attachment 324124 [details] Select field
This old bug is fixed for me.
(In reply to Guilaume Ayoub from comment #3) > This old bug is fixed for me. Probably fixed the last time I touched the popup menu and context menu code to make it work with GTK4, because the code was also revamped a bit for GTK3. Thanks for taking the time to check and close this bug, Guillaume!