Why as worker not working on macos 10.8.4?

Question

os version 10.8.4
air sdk 3.8beta
flash player 11.7 debug version for macos
and I tried 3.7, result is the same
code is very simple test
main:
package sandbox
          import flash.display.Sprite;
          import flash.system.Worker;
          import flash.system.WorkerDomain;
          import flash.utils.ByteArray;
          public class TestWorkerMain extends Sprite
                    [Embed(source="../../workerswfs/sandbox/TestWorker.swf", mimeType="application/octet-stream")]
                    private static var Worker_ByteClass:Class;
                    private var worker:Worker;
                    public function TestWorkerMain()
                              var bytes:ByteArray = new Worker_ByteClass();
                              worker = WorkerDomain.current.createWorker(bytes);
                              worker.start();
                              super();
worker:
package sandbox
          import flash.display.Sprite;
          import flash.events.TimerEvent;
          import flash.utils.Timer;
          public class TestWorker extends Sprite
                    public function TestWorker()
                              super();
                              var t:Timer = new Timer(1000);
                              t.addEventListener(TimerEvent.TIMER,onTimer);
                              t.start();
                    protected function onTimer(event:TimerEvent):void
  trace("working ... ");
I start scout see no worker reported, but on windows platform flash player 11.7, scout report there's a worker
but the worker's functionality is fine, but synced with the main flow, which meanless to start a worker

Answer 1

finally somebody answsered my question... I've been send this question to all kinds of social network/forums, it seem that everybody just ingoring this
and also I filed a bug report not long ago at
https://bugbase.adobe.com/index.cfm?event=bug&id=3589061
Sorry I don't really know wheren went wrong, so I filed it at air sdk bug
I also tried it on my newly bought mac mini with macos 10.8 ,the result is the same
and my colleage can run the same swf with worker reported correctly on windows 7
so I am guessing this is the macos related problem