[whatwg] Specification unclear about how HTMLElement.prototype.onscroll's getter/setter should behave for "body" elements

[Cameron McCormack]

On 4/12/12 11:33 AM, Ian Hickson wrote:
> Per our IRC discussion just now, I think I would propose that when a
> method/setter/getter from a prototype of interface A is called against an
> object that is of an interface B (or one of B's descendants), where B is a
> subclass of A, and B defines its own method/getter/setter with the same
> name, then it should throw.

I filed https://www.w3.org/Bugs/Public/show_bug.cgi?id=20225 for that.