It's basically the right-click menu. I activates on mobiles when you long-press a module ...
-- wiredearp

O.K., now I think I get what you mean. The menu which reads "Save image/Copy" ?
Strange thing: I can not reproduce it on my iPad (iOS 7.1). The contextual menu only shows up, when I am hovering about a module in a rack of an other user where I have no editing rights.
On my own racks I am not able to trigger the contextual menu (?).
Your code looks good, but I have to been able to reproduce the error. I will investigate further ...

Beep, Bopp, Bleep: info@modulargrid.net