Gmail MP3 player domain limitation

Content
1

Hi,

Here’s the player embed code:

<embed src="http://mail.google.com/mail/html/audio.swf" wmode="transparent" flashvars="audioUrl=http://sites.google.com/site/michaelmccolin/home/sample.mp3" width="500" height="27" quality="best" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer"></embed>

The player doesn’t work if the MP3 file is hosted outside Google domain.
I wonder if there’s a way to remove this limitation.

Any help is greatly appreciated!
Mike

2

crossdomain.xml

3

Thanks for the answer, but what’s that and how does it work?