Problema con SWFLoader y video de youtube en Flex

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" borderColor="#083A5E" borderStyle="solid" borderThickness="3" cornerRadius="8" backgroundGradientAlphas="[1.0, 1.0]" backgroundGradientColors="[#120101, #886312]">
<mx:Button x="10" y="26" label="Fell in Love" width="97" color="#F0F7F8" cornerRadius="0" fillAlphas="[1.0, 1.0]" fillColors="[#0D0A00, #460202]" borderColor="#F2F6F8" alpha="1.0" themeColor="#E8EEF2" fontFamily="Arial" fontWeight="bold" fontSize="11" id="fell_in_love" click="Init()"/>
<mx:Script>
<![CDATA[
private function Init():void{
var url:String = "http://www.youtube.com/v/CM25VDEE-3A&hl=es&fs=1";
Security.allowDomain(url);
youtubevid.load(url);
}
]]>
</mx:Script>
<mx:SWFLoader x="147" y="47" width="316" height="256" id="youtubevid" visible="true"/>
</mx:Application>