Issues setting scrollTop of element

Issues setting scrollTop of element

I have found many posts with the same answers on how to do this but it
just isn't working for me. I can see the scrollHeight of the element I am
trying to set but the scrollTop value never changes from zero. The only
difference possible difference from a standard application of setting
scrollTop and my configuration is that I am attempting to set the
scrollTop of an element in a child frame. I can access the element fine
via selectors through the child frame and then I can see the scrollHeight
as a correct value. Setting scrollTop just doesn't do anything.