Been searching for the API to embed a Youtube channel's user_uploads for channels which have the new channel_id (starting with UC) instead of a user name but did not find any working solution. According to the API, there is only the possibility to embed a player with user_uploads for a USER ID. Are there any (undocumented?) parameters to achieve this?
Example of working iframe embed with user_id:
http:// www.youtube.com / listType=user_uploads&list=USERNAME
Not working:
http:// www.youtube.com / embed?listType=user_uploads&list=UC....xxxxx (Google + style channel id)