Somebody over on reddit tested different user agents: https://www.reddit.com/r/google/comments/btysl9/google_have_blocked_access_to_the_new_youtube/ep5hkom/ htt

Somebody over on reddit tested different user agents: https://www.reddit.com/r/google/comments/btysl9/google_have_blocked_access_to_the_new_youtube/ep5hkom/ https://www.reddit.com/r/google/comments/btysl9/google_have_... It seems pretty clear from the fact that nonsense user agents like "TotallyNotMicrosoft" and "IE6" worked, that there is a blacklist, not a whitelist.