Wow, when did MDN start scrolljacking? I use a browser extension [1] which provides vim-like bindings for Chrome, and sites that scrolljack severely mess up the scroll up/down functionality. It's hard to tell there's scrolljacking just by using your mousewheel, but if you try running `window.scrollBy(0, 500);` in your developer console, you'll see the easing being applied. Try the same code on a site without scrollja…
[1]: https://developer.mozilla.org/en-US/docs/Web/CSS/scroll-beha...