Uniweb(sockets) + Facebook

Hi, I'm trying to connect to Facebook Graph API using UniWeb plugin. Everything works fine on iOS, but on the web player I'm getting this exception:

 System.Security.SecurityException: Unable to connect, as no valid crossdomain policy was found
   at System.Net.Sockets.Socket.Connect_internal (IntPtr sock, System.Net.SocketAddress sa, System.Int32& error, Boolean requireSocketPolicyFile) [0x00000] in <filename unknown>:0 
   at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP, Boolean requireSocketPolicy) [0x00000] in <filename unknown>:0 
   at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) [0x00000] in <filename unknown>:0 
   at System.Net.Sockets.TcpClient.Connect (System.Net.IPEndPoint remote_end_point) [0x00000] in <filename unknown>:0 
   at System.Net.Sockets.TcpClient.Connect (System.Net.IPAddress[] ipAddresses, Int32 port) [0x00000] in <filename unknown>:0 

The same example works ok if I connect using WWW instead of UniWeb.

This is the relevant code:

 // This works ok    
  IEnumerator  GetUserInfoWWW()
 {
     WWW www = new WWW("https://graph.facebook.com/100002347686605?fields=id,name,friends&access_token=" + accessToken);
         
     yield return www;
         
     response = www.text;
     error = www.error;
         
 }
     
 // This doesn't work. I get System.Security.SecurityException: Unable to connect, as no valid crossdomain...
 IEnumerator  GetUserInfoUniWeb()
 {
     var request = new HTTP.Request("GET", "https://graph.facebook.com/100002347686605?fields=id,name,friends&access_token=" + accessToken);
 
     request.Send();
         
     while(!request.isDone) yield return new WaitForEndOfFrame();
         
     if(request.exception != null) 
     {
             Debug.LogError(request.exception);
     }
     else
     {
             var response = request.response;
             Debug.Log(response.status);
         Debug.Log(response.GetHeader("Content-Type"));
         Debug.Log(response.Text);
     }
 }

I am missing something? UniWeb uses sockets to implement the http client, I don't know if this is relevant to this situation.

The UniWeb documentation says something about calling PrefetchSocketPolicy in order to the examples to work on the web player. I'm calling it like this:

 Security.PrefetchSocketPolicy("https://graph.facebook.com", 843);

But it doesn't makes any difference.

I will appreciate any help. Thanks!