ExternalInterface is not working?

Question

Hi all,
I have an issue with ExternalInterface.call, it's working fine in IE but not in Chrome I don't know why? is there any solution? please let me know. Bellow you can find the code. Thanks in advance.
AS Code:
import flash.external.ExternalInterface;
var req:String
var msg:String
site_btn.addEventListener(MouseEvent.CLICK, gotowebsite)
function gotowebsite(event){
        req = "http://www.google.com/"
        if( ExternalInterface.available ) {
                 Security.allowDomain(req);
                 ExternalInterface.call( "downloadFileFromAS", req );
                 msg="good"
        }else{
                msg="error in ExternalInterface"
      msg_txt.text=req
JS Code:
<script type="text/javascript">
     function downloadFileFromAS(_fileURL ) {
           window.open(_fileURL,"_blank");
</script>
Thanks and Regards
Santhosh Kumar M

Answer 1

Change the value of "allowScriptAccess" param to "always" from "sameDomain" in the generated HTML, if you are testing your html from the local file system. If you host it on a webserver, this would not be required.
Take a look @ http://helpx.adobe.com/flash-player/kb/changes-allowscriptaccess-default-flash-player.html #main_DIAGNOSIS for more details.
-Dharmendra.