public function onKernelResponse(FilterResponseEvent $event)
    {
        $response = $event->getResponse();
        $request  = $event->getRequest();
        if (!$event->isMasterRequest())
        {
            return;
        }
        if ($request->isXmlHttpRequest())
        {
            return;
        }
        $this->_injectDatatableScript($response, $request);
    }