[szhu]

Similar thing I made recently, but as a Chrome extension:

https://github.com/szhu/pagefreeze

It does the same thing, and in addition also prevents any async JS from running. It also can be easily toggled per-site; just click the extension icon! Unfortunately I didn't have time to put a GIF in the README. OP did a better job of explaining what their project does!

Would love feedback on it + hope it helps someone as well!

[darepublic]

You override window.addEventListener? At that point I think you may as well just use nojs

[szhu]

That doesn't work well, a lot of news websites and React-powered blogs need that initial load or else the page is all blank!