In this case, it's the URL you're using. When I post, using the exact same URL you did, I get this: https://www.youtube.com/live/mlPHKFPRPVw?si=cAzceSq94h1FXlmM When I paste that URL into a web browser, it redirects to this which works fine. https://www.youtube.com/watch?v=mlPHKFPRPVw Stripping off the HTTP stuff so you can see the difference. This works www.youtube.com/watch?v=mlPHKFPRPVw This doesn't work www.youtube.com/live/mlPHKFPRPVw?si=cAzceSq94h1FXlmM