![Marco Trevisan (Treviño)](/assets/img/avatar_default.png)
Starting from commit 7bb84dae, GrabHelper requires the owner to be an Actor as we pass this to pushModal that assumes it to be as well. So check that GrabHelper owner is an actor and throws an error if it is not the case. This helps in tracking down issues such as gnome-shell-extensions!68 https://gitlab.gnome.org/GNOME/gnome-shell/merge_requests/565