Username lookup popup rendering offscreen

[ChrisBeach (Chris)]

Reported today by a member of my forum:

I also often see a similar problem when clicking on the cog in the editor:

[codinghorror (Jeff Atwood)]

Regarding the user completion, I thought we had code that checked for offscreen at the top on that @tgxworld?

The mobile case is different.

[tgxworld (Alan Tan)]

Seems to be working OK for me in both desktop and mobile. @ChrisBeach How did you trigger those case?

[sam (Sam Saffron)]

Easy repro is on iPhone, if you click gear prior to composer going full screen with safari hack