Index: t3lib/class.t3lib_pagerenderer.php
===================================================================
--- t3lib/class.t3lib_pagerenderer.php	(revision 10306)
+++ t3lib/class.t3lib_pagerenderer.php	(revision )
@@ -111,8 +111,8 @@
 	protected $addExtJS = FALSE;
 	protected $addExtCore = FALSE;
 	protected $extJSadapter = 'ext/ext-base.js';
+	protected $extDirectCodeAdded = FALSE;
 
-
 	protected $enableExtJsDebug = FALSE;
 	protected $enableExtCoreDebug = FALSE;
 
@@ -139,7 +139,6 @@
 	protected $addSvg = FALSE;
 	protected $enableSvgDebug = FALSE;
 
-
 		// used by BE modules
 	public $backPath;
 
@@ -945,6 +944,10 @@
 	 * @return void
 	 */
 	public function addExtDirectCode() {
+		if ($this->extDirectCodeAdded) {
+			return;
+		}
+		$this->extDirectCodeAdded = TRUE;
 		$token = '';
 		if (TYPO3_MODE === 'BE') {
 			$formprotection = t3lib_formprotection_Factory::get();