WWW (webrequest)not working in windows8.1 app store build

Hello, i am making an online login system using www in unity.

codes works as expected when executed in unity editor , but its not working when i build it for windows 8 app store.

when i execute it in app store it is not being able to send the request to the link i have specified in www.

here is the code i have used.

   function LoadRegData()
         {    
             var form = new WWWForm();
             form.AddField("getName", nameText);

             var webRequest = WWW("highcube.net/knownsensesite/policeapp/load_reg_data.php", form);
             
             yield webRequest;
             
             if(webRequest.text==nameText ){ 
     /* nameText is the value of Textfield that i have used to get the username. the webrequest.text is compared to nameText variable , if both values are same then it loads second scene, but here it is not getting the value in webrequest in app store build, but works well when built for stand alone platform.*/
                 
                 username = webRequest.text;
                 laoding = false;
                 //Application.LoadLevel("dashboard");
             }
             else
             {
                 
                 StoreNotExist = "Username or Password is Incorrect.";
                 print("Names dont match.");
             }
         }

I dont know what is wrong !! doesnt windows 8.1 app store build support webrequest and www?? help me with this.how to solve this.

thanks, -Hims