Audio ConcoonJS

I have added audio to my game which plays fine when I test it in my browser. Whenever I export for CocoonJS and play on my iPad mini, there is no audio. Is this even possible? Construct 2 automatically converts my audio files when I import them, but should I convert to any particular file type before importing?

apparently that's a cocoonjs bug...

Thanks for the reply. No one who got it running? Is there a workaround?

cJS is supposed to support MP4 or the converted M4a converted file. I've heard of some success. But I haven't managed it.