Comment by breckognize

Kinda related - our product, rowzero.io, is a browser-based spreadsheet with a 2 billion row limit. We initially built the client as anyone would, using a div per cell. We tried to use an off-screen div to take advantage of the browser's native scrollbars but ran into document height limits. Firefox's was 6M pixels iirc. The solution was to do rendering in canvas and draw the scrollbars ourselves.