(I've submitted a bug report to YouTube but thought someone here might have some insight)
It seems that the YouTube API is suddenly (past 24 hours or so) demanding a leading "PL" in playlist IDs when requesting playlist feeds. Here's how you can reproduce:
- Make an API call to http://gdata.youtube.com/feeds/api/playlists/PL83FF64CDA043CBC4?v=2
- Make an API call to http://gdata.youtube.com/feeds/api/playlists/83FF64CDA043CBC4?v=2
You'll notice that the actual playlist identifier (83FF64CDA043CBC4) is the same in each case, but the first call is prefixed with "PL".
The playlist itself is viewable at both
- http://www.youtube.com/playlist?list=PL83FF64CDA043CBC4
- http://www.youtube.com/playlist?list=83FF64CDA043CBC4
According to this blog post, the API should be tolerant of the leading "PL", but in this case it seems to demand it.
Anyone have some insight into the sudden change?