So I am having a web application with domian \"www.example.com\" that needs to serve audio from \"www.example2.com\", but for some reason this is not working (the audio just
FF and Chrome do not support it, but the IE11 do.
I think W3C should have an solution about cross domain, after all it is a completely reasonable request.
I think HTML5 does not allow you to take a source from another hosting provider / server. Maybe it's limited to your domain but I'm not 100% sure... I do remind that there was a little limitation about this html5 element...
You would need to do some tests but I reckon that it does work, but you may have difficulties with certain actions and queries
Example, you may be able to start/pause/stop but not check the title or the length since that could be a form of XSS
Apparently I cannot vote up CyberK's response (don't have the reputation yet to do so) but I agree with him. You cannot do <audio> or <video> cross-domain. I have tried this exact thing on both Chrome and Firefox. There are more than a couple of articles about this. Finding this out for myself today; not happy with the restriction.
http://www.bluishcoder.co.nz/2008/11/video-audio-and-cross-domain-usage.html