When panning a standalone SVG document, the scroll bars don’t update to reflect the scroll position. To reproduce: 1. Open the URL 2. Shift-drag to pan Notice that the scroll bars do not update.
Yeah, the panning code is a pure special case for SVG in FrameView (?) - IIRC. It's not integrated in any way with the scroll bar code. Hm, I am not even sure it should be, panning at least shouldn't be tied to the initial viewport.