Did anyone ever find a solution to this? I don't know if what I'm running into is the same issue, but I haven't found any other posts on unwanted scrollbars.
I've created a Page with two DIVs to allow one DIV with navigation links to remain stationary while the second DIV scrolls through a long text document. The second DIV has a set height. However, Canvas adds an additional scrollbar that scrolls well past the end of the visible content.