A feed with zero items is still valid RSS
Quote
So this so it's valid XML it's valid RSS. And so that means it's it's okay.
Episode 108: Hard Out (episode page, opens in a new tab) 00:13:40 (play audio from this timestamp, opens in a new tab)
Voice-matched
Summary
Talking about remote-item playlists and live-only feeds, Dave points out that RSS 2.0 lets a channel have any number of items, including zero. An empty feed is legal; how to handle it is the client's parsing decision. Read the spec before assuming something is broken.