Veyra didn't just hide things in the page. He hid things in the browser itself. There is a storage layer that JavaScript can write to and read from a shelf that survives page reloads, tab closures, even browser restarts. It's called localStorage.
A script on this page has already stashed something. You won't find it in the HTML, the CSS, or the console output. You'll find it in the browser's own memory.