Requests from referer https://www.googleapis.com/youtube/v3/playlistItems?part=id,snippet,contentDetails,status&maxResults=12&playlistId=PLAN0IRH6uBT8XKfETMBQMuqQrNGlIDiOJ&key=AIzaSyCPbqkDU2blC8J21fL4EUvM1_9TDjG7l64 are blocked.