Silverlight : WCF getting error on server but localhost works fine

Question

I have silverlight application and i'm getting this error :

[Async_ExceptionOccurred]
Arguments: 
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=5.0.61118.00&File=System.dll&Key=Async_ExceptionOccurred INNER >System.ServiceModel.CommunicationException: [CrossDomainError]
Arguments: http://localhost/pthaba/SimpleWCF.svc
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=5.0.61118.00&File=System.ServiceModel.dll&Key=CrossDomainError ---> System.Security.SecurityException ---> System.Security.SecurityException: [Arg_SecurityException]
Arguments: 
Debugging resource strings are unavailable. Often the key and arguments provide sufficient information to diagnose the problem. See http://go.microsoft.com/fwlink/?linkid=106663&Version=5.0.61118.00&File=mscorlib.dll&Key=Arg_SecurityException

I have an WCF service and works fine on browser. I have clientacesspolicy.xml like below on root site (where is located the WCF service)

<?xml version="1.0" encoding="utf-8" ?>
<access-policy>
  <cross-domain-access>
    <policy>
      <allow-from >
        <domain uri="*"/>
      </allow-from>
      <grant-to>
        <resource path="/" include-subpaths="true"/>
      </grant-to>
    </policy>

  </cross-domain-access>
</access-policy>

What i'm doing wrong? Can anybody helpme?

EDIT :

On my localhost works fine, but on server doesn't. Fiddler seems ok, no error on that.

am i missing some IIS configuration?

More error details above :

 at System.Net.Browser.BrowserHttpWebRequest.InternalEndGetResponse(IAsyncResult asyncResult)
   at System.Net.Browser.BrowserHttpWebRequest.<>c__DisplayClassa.<EndGetResponse>b__9(Object sendState)
   at System.Net.Browser.AsyncHelper.<>c__DisplayClass4.<BeginOnUI>b__1(Object sendState)
   --- End of inner exception stack trace ---
   at System.Net.Browser.AsyncHelper.BeginOnUI(SendOrPostCallback beginMethod, Object state)
   at System.Net.Browser.BrowserHttpWebRequest.EndGetResponse(IAsyncResult asyncResult)
   at System.ServiceModel.Channels.HttpChannelFactory.HttpRequestChannel.HttpChannelAsyncRequest.CompleteGetResponse(IAsyncResult result)
   --- End of inner exception stack trace ---
   at System.ServiceModel.AsyncResult.End[TAsyncResult](IAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.SendAsyncResult.End(SendAsyncResult result)
   at System.ServiceModel.Channels.ServiceChannel.EndCall(String action, Object[] outs, IAsyncResult result)
   at System.ServiceModel.ClientBase`1.ChannelBase`1.EndInvoke(String methodName, Object[] args, IAsyncResult result)
   at Pthaba.SimpleSVC.SimpleWCFClient.SimpleWCFClientChannel.EndGetGameLevelPlataforms(IAsyncResult result)
   at Pthaba.SimpleSVC.SimpleWCFClient.Pthaba.SimpleSVC.ISimpleWCF.EndGetGameLevelPlataforms(IAsyncResult result)
   at Pthaba.SimpleSVC.SimpleWCFClient.OnEndGetGameLevelPlataforms(IAsyncResult result)
   at System.ServiceModel.ClientBase`1.OnAsyncCallCompleted(IAsyncResult result)
ult)

Answer 1

I was having the same issue, and got mine to work following this article: Making a Service Available Across Domain Boundaries.

I had to make one change as follows which someone commented on at the bottom of that article:

<allow-from http-request-headers="*">