[RyanMcGreal]

There’s a curious anomaly, though: if you try to scroll using touch screen scrolling, the page happily moves up and down, even while JavaScript is blocking nearly everything else on the page. This also works for touch pad scrolling, mouse wheel scrolling, and click-and-drag scrolling (depending on your browser).

Mouse wheel scrolling still works on Chrome but not on Firefox.

[nolanl]

(Author of the post here.) It may depend on your OS or your Firefox version! :) I spoke with some Firefox folks after publishing this piece, and it turns out they've fixed some things in Firefox 52, notably for touch-enabled Windows laptops.