Contact form Invalid Token patch

gistfile1.aw

if ($user->get('id') || ($viewnow == 'category' && $viewcache == 0)) {
            $view->display();
        } else {
+
+           // Workaround for token caching
+           if ($viewName == 'contact')
+           {
+               ob_start();
+           }
+
            $option = JRequest::getCmd('option');
            $cache =& JFactory::getCache($option, 'view');
            $cache->get($view, 'display');
+
+           // Workaround for token caching
+           if ($viewName == 'contact')
+           {
+               $contents = ob_get_contents();
+               ob_end_clean();
+
+               $token          = JUtility::getToken();
+               $search         = '#
#';
+               $replacement    = '
';
+
+               echo preg_replace($search, $replacement, $contents);
+           }
        }
    }