Don't PHP serialize the data but save the data in the data property i…

…nstead

EventListener/AjaxResponseListener.php

@@ -34,10 +34,8 @@ public function onKernelResponse(FilterResponseEvent $event)
             return;
         }
 
-        // Get PHP serialized content - serialize()
-        $content = $response->getContent();
-        // Deserialize it
-        $data = unserialize($content);
+        // Get the data
+        $data = $response->getData();
 
         // Do nothing if the type is a redirect
         if ($data['type'] == AjaxResponse::TYPE_REDIRECT) {

Response/AjaxResponse.php

@@ -50,9 +50,25 @@ public function __construct($content = '', $type = self::TYPE_DATA, $data = null
         // serialization context configured by the YAML files on the entities. If a new serialization context class
         // is initialized in this class we don't know what the settings are in the YAML files. We can't access these
         // configuration files because that would result in a massive performance degradation.
-        // INFO: This isn't a really nice solution but it's only possible to add a string to the content
-        parent::__construct(serialize($this->data), $status, $headers);
+        // The AjaxResponseListener will serialize the data property and set the content of the response
+        parent::__construct('', $status, $headers);
         // Set content type
         $this->headers->set('Content-Type', 'application/json');
     }
+
+    /**
+     * @return array
+     */
+    public function getData()
+    {
+        return $this->data;
+    }
+
+    /**
+     * @param array $data
+     */
+    public function setData($data)
+    {
+        $this->data = $data;
+    }
 }