[t1499] Making sure vertical scrollbar is not used until it is ready. Ensure when it is ready it is updated.
[t1499] Making sure vertical scrollbar is not used until it is ready. Ensure when it is ready it is updated.

BBGInnovate/butter,mbuttu/butter,mozilla/butter,BBGInnovate/butter,mbuttu/butter,robinparadise/videoquizmaker,robinparadise/videoquizmaker,mbuttu/butter,mozilla/butter