My header navigation menu has various menus, and on mobile devices, the menu slides to the left or right when navigating through submenus. Everything was working perfectly until the recent iOS upgrade to 9.0.2. Now, at this specific line of code:
menu.css({left: -(100 * positionVariable)) + '%'});
something strange happens: the body shrinks to half its size and the child menu slides in from the far right side of the page instead of smoothly transitioning. Whenever I switch to another submenu, the page halves again. Here's how it appears during the slide:
https://i.sstatic.net/EBljK.png
The child menu moves into place as expected, but the body remains distorted.
I've also noticed a similar issue in some of my other apps (like MyFoodDiary), where the body shrinks while sliding left, but then returns to normal size once the animation is complete. Has anyone else experienced this bug? Any suggestions on how to resolve it?