Scrollbar visible when no scrolling is required

[aaronlp]

I have the scrolly component set to a fixed height and am expecting when the DOM content inside the scrolly viewport is less than or equal to the height of the scrolly viewport, then the scrollbar will not be visible. The behaviour I'm seeing is that the scrollbar becomes visible on the mouse entering the viewport even though there is no need to scroll - this is confusing and distracting for users who then attempt to scroll thinking there is hidden content and the scrollbar only allows the scroll a miniscule amount.

Suggested solution is to not show the scrollbar or facilitate the ability to scroll when the content is less than or equal to the height of the scrolly viewport.