Index: class.t3lib_befunc.php
===================================================================
RCS file: /Typo3Core/SMS/class.t3lib_befunc.php,v
retrieving revision 1.1
diff -u -r1.1 class.t3lib_befunc.php
--- class.t3lib_befunc.php	10 May 2012 14:10:41 -0000	1.1
+++ class.t3lib_befunc.php	10 May 2012 14:11:04 -0000
@@ -2594,6 +2594,7 @@
 		}
 
- 		$viewDomain = self::getViewDomain($pageUid, $rootLine);
+		//$viewDomain = rtrim(t3lib_div::getIndpEnv('TYPO3_SITE_URL'), '/');
+		$viewDomain = rtrim(t3lib_div::getIndpEnv('TYPO3_SITE_URL'), '/');
 		$previewUrl = $viewDomain . $viewScript . $pageUid . $additionalGetVars . $anchorSection;
 		$onclickCode = "var previewWin = window.open('" . $previewUrl . "','newTYPO3frontendWindow');" . ($switchFocus ? 'previewWin.focus();' : '');
 		return $onclickCode;