This has worked for as long as long as I've been using the SC API. You could play a private track in a playlist with that playlists' secret_token. As of last week, this stopped working. I've been waiting for this to be resolved (as recent secret_token bugs have been), but nothings changed in days.
Getting this error:
Failed to load resource: the server responded with a status of 404 (Not Found)
Will this be the continued behavior? Or is it a bug?