title: ConvertAndSendToUser SpringStomp Sockjs not working SimpMessagingTemplate
body: <p>I want to send notification to specific user. My client side code is:</p>
  
  <pre><code>stompClient.connect({},function (frame) {
     stompClient.subscribe('user/queue/notification', function(response){
       alert(angular.fromJson(response.body));
     });
  </code></pre>
  
  <p>Here's my server configuration:</p>
  
  <pre><code>@Configuration
  @EnableWebSocketMessageBroker
  public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer{
  
  @Override
  public void configureMessageBroker(MessageBrokerRegistry config) {
      config.enableSimpleBroker("/queue");
  }
  
  
  @Override
  public void registerStompEndpoints(StompEndpointRegistry registry) {
      registry.addEndpoint("/myWebSocketEndPoint")
              .setAllowedOrigins("*")
              .withSockJS();
      }
  }
  </code></pre>
  
  <p>Here's my server message-sender:</p>
  
  <pre><code>@Component
  public class MenuItemNotificationSender {
      public void sendNotification(MenuItemDto menuItem, String username) {
          String address = "/queue/notification";
          System.out.println(username);
          messagingTemplate.convertAndSendToUser(username,address, menuItem);
      }
  }
  </code></pre>
  
  <p>The messages are sent correctly, to the correct username, but why client doesn't receive them?</p>