Mobile implemented - hide fullscreenButton

Hi, I've successful implemented BoxView in my app for iPad but at the tap of fullscreen-button, BoxView zooms and hides the fullscreen-button outside the screen. So I can't return to normal size.

The iframe that I used is very simple and I point up I don't use allowfullscreen tag:

Someone can help me?
Thanks!

Start by reproducing the issue on an iPad using the iframe shown in the report, including the fullscreen-button interaction. Confirm whether the viewer zooms so the control leaves the screen, and document a reproducible test case and expected behavior in which the view can return to its normal size.

Written by the indexing model from the issue text.