iOS iPhone safari mobile main menu bug

[KT TEAM]

Hello guys, while developing a new Magento 2.0 website we have encountered an issue with the defaul Magento 2 theme.
It can be reproduced by going on any Magento2 demo website (we have our own Magento2.kt-team.de). 

http://joxi.ru/4AkoZ81HMa6YLA Here is the screenshot on google chrome mobile emulation of how it should be.
And here is the screenshot on browserstack real device iPhone6s while using safari:
http://joxi.ru/V2VLGdMh0Z3N1r

Could you please share any suggestions? I couldn't find help on the net so far.

[KT TEAM · Accepted solution]

Hello, guys, we have found a solution 
http://stackoverflow.com/questions/36750430/magento-2-luma-iphone-responsive-menu
It was kind of hard to do it trough search because basically it's not the iPhone but safari issue.