Requests from referer  are blocked.
Original request - https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&type=video&videoEmbeddable=true&playlistId=PLYKy4VbxNln5V3x2SaWnWG36LKlkFFP8q&key=AIzaSyAq8DAFAh-Eqa_Ni5iDie7cd6m5PwYZoE0&maxResults=50&order=date
Requests from referer  are blocked.
Original request - https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&type=video&videoEmbeddable=true&playlistId=PLYKy4VbxNln5V3x2SaWnWG36LKlkFFP8q&key=AIzaSyAq8DAFAh-Eqa_Ni5iDie7cd6m5PwYZoE0&maxResults=50&order=date
Gallery when-a-child-has-cancer does not seem to have any videos.