WP8: "Streaming of 'mp3' on this platform is not supported"

As the title says–I’m hitting this error trying to load an MP3 out of the StreamingAssets folder. Every piece of documentation on the Unity website says that MP3s are supported on mobile platforms. Is Windows Phone an exception? I’m running Unity Pro, so it shouldn’t be a licensing issue.

MP3 streaming is supported on Android, iOS, BB10 and Tizen only.

I maid an Asset play mp3 files, it works on Win, Max, Linux, iOS, android…

It works for local files and web streams.

I have not tested windows phone but I am completely inside unity so it should be good.

Asset - uAudio: Mp3 Player/Streamer