easyAjax fiseing cahce layout

Response.php

/**
     * Load custom layout
     *
     * @return Mage_Core_Model_Layout
     */
    protected function _loadCustomLayouts()
    {
        $layout = Mage::app()->getLayout();
        $update = $layout->getUpdate();
        // load default custom handle
        $update->addHandle('easy_ajax_default');
        // load action handle
        $fullActionName = Mage::app()->getRequest()->getRequestedRouteName() . '_' .
            Mage::app()->getRequest()->getRequestedControllerName() . '_' .
            Mage::app()->getRequest()->getRequestedActionName();
        $update->addHandle('easy_ajax_' . strtolower($fullActionName));

        if (Mage::app()->useCache('layout')){
            $cacheId = $update->getCacheId().'_easy_ajax';
            $update->setCacheId($cacheId);

            if (!Mage::app()->loadCache($cacheId)) {
                foreach ($update->getHandles() as $handle) {
                    $update->merge($handle);
                }

                $update->saveCache();
            } else {
                //load updates from cache
                $update->load();
            }
        } else {
            //load updates
            $update->load();
        }

        //generate xml
        $layout->generateXml();
        //generate layout blocks
        $layout->generateBlocks();

        return $layout;
    }