Howto access playlist data through API?

[Stubbie]

Oh, I just accidentally stumbled on a workaround/solution... It's odd, but this returns me the contents of the playlist. Odd because the intended call to Playlist/../Items doesn't return anything.

Returns contents of playlist:
http://172.16.XXX.XXX:8096/Users/fd6e1bc...laylistId>

This does not:
http://172.16.XXX.XXX:8096/Playlists/<PlaylistId/Items