Press Me If U Can - web - webtopia

Writeup - by bylal

You only need to:

const old = getEventListeners(window).mousemove?.[0]?.listener;
if (old) window.removeEventListener("mousemove", old);

then

btn.disabled = false;

You can then click the button and you will be redirected to what seems an empty page but the flag will be printed in console or in source code.