// Замени на свой URL
Which in English is: // Replace with your URL
And various other descriptive comments like // Полностью очищаем страницу (Completely clear the page)
// Создаём новый контейнер с индикатором загрузки (Creating a new container with a loading indicator)
// Через 3 секунды скрываем Cloudflare и запускаем загрузку (In 3 seconds, we hide Cloudflare and start the download.) [Though this was next to a 900ms timeout, so there's definitely been some tweaking]
They're the kind of comments that don't really make sense if the author is writing them themselves, but would if they're using something off the shelf, or asking some LLM to output code. The descriptive comments of what the code's doing definitely makes me lean towards the latter.