Asunto: Tactic editor on smartphone

Moving the ball does not work for me on a smartphone (html-mode of tactic editor).

A feature, or a bug?

Or am I too stupid and there is a way I have not noticed so far?
(editado)

it has always not work and it obviously is a bug
you can probably use Terrion work to edit tactic from mobile device: https://raqueto.com/sokker/sete