IE11 scroll Issue

[pochol]

Works in IE Edge - but issue is in IE10, IE11 - when a user mouses over the drop-down list they cannot select an option as it disappears. I've downloaded newest version and still the same issue occurs. When max height is set to show scroll bar issue occurs after click on the scroll bar.

link to js bin http://jsbin.com/civiged/edit?html,css,js,output tested on ie11,10

Please help me with this one. Thanks