Pointer down action doesn't seem to propagate the position.

[seanparsons]

If I fire a PointerDownAction with the x and y fields set like this:

, _actionX = Just 1000
, _actionY = Just 500

When I inspect the mouse down on the JavaScript side all the fields like pageX, clientY are all set to zero, so the mouse down gets applied to whatever is on the top left.