Index: typo3/backend.php
===================================================================
--- typo3/backend.php	(revision 5755)
+++ typo3/backend.php	(working copy)
@@ -369,7 +369,7 @@
 		'TYPO3_mainDir' => TYPO3_mainDir,
 		'pageModule' => $pageModule,
 		'condensedMode' => $GLOBALS['BE_USER']->uc['condensedMode'] ? 1 : 0 ,
-		'workspaceFrontendPreviewEnabled' => (($GLOBALS['BE_USER']->workspace != 0 && !$GLOBALS['BE_USER']->user['workspace_preview']) ? 'false' : 'true'),
+		'workspaceFrontendPreviewEnabled' => (($GLOBALS['BE_USER']->workspace != 0 && !$GLOBALS['BE_USER']->user['workspace_preview']) ? 0 : 1),
 		'veriCode' => $GLOBALS['BE_USER']->veriCode(),
 		'denyFileTypes' => PHP_EXTENSIONS_DEFAULT,
 	)) . ';