diff --git a/t3lib/class.t3lib_div.php b/t3lib/class.t3lib_div.php
index 5072134..52c1561 100755
--- a/t3lib/class.t3lib_div.php
+++ b/t3lib/class.t3lib_div.php
@@ -2981,7 +2981,7 @@ final class t3lib_div {
 	public static function locationHeaderUrl($path)	{
 		$uI = parse_url($path);
 		if (substr($path,0,1)=='/')	{ // relative to HOST
-			$path = t3lib_div::getIndpEnv('TYPO3_REQUEST_HOST').$path;
+			$path = substr(t3lib_div::getIndpEnv('TYPO3_SITE_URL'),0,-1).$path;
 		} elseif (!$uI['scheme'])	{ // No scheme either
 			$path = t3lib_div::getIndpEnv('TYPO3_REQUEST_DIR').$path;
 		}