My addon started tainting FocusUnit()

[Animor]

Hello,

Recently people started complaining about my addon giving them taint lua errors, connected to FocusUnit().
I didn't change anything in my addon for months, so I don't know why this errors started just now.

Anyway, my addon doesn't use any focus related api. I've made some searches and found out that it can be related to my addon using a dropdown menu (I use it for the user to select a font from a list of fonts).

Is it indeed the dropdown menu that causes the lua error?
Is there an easy way to resolve this issue? because people stopped using my addon because of this error.

I attach an example of the error my addon does. Any help is appreciated!

[Vlad]

Oh boy! *getting popcorn*

[zork]

Man...why is the dropdownmenu ****ed up like that?

[Animor]

I understand that this may be a joke for some of you... But I've just came back from few months absence, and I'm trying to fix this addon.

So I would really appreciate some help here...

[Vlad]

I will let someone else explain dropdown taint, I am afraid I may say something wrong. :P

*Edit*

I suspect the issue is taint with dropdown, and for the love of god I can't find some post summarizing why and how to deal with this issue, that's why I couldn't post a good reply.

[Phanx]

Any addon touching any dropdown menu anywhere at any time will taint the entire dropdown menu system, breaking the focus menu commands and all other secure menu commands. The only solution is to write your own dropdown system from scratch (or find a library that does it) and not touch anything remotely related to the Blizzard dropdown menu system in any way at any time.