Requests from referer https://www.googleapis.com/youtube/v3/playlistItems?part=id,snippet,contentDetails,status&maxResults=9&playlistId=PLm4s_V0qKUfdZV737qcbEAdOlWrZH5z-A&key=AIzaSyDXAMcTrhARlWG7OO4ARFu_z_oJBg5iuV0 are blocked.