--- core/print_api.php.orig	2007-12-13 07:51:40.000000000 +0100
+++ core/print_api.php	2007-12-13 07:53:54.000000000 +0100
@@ -27,12 +27,14 @@
 	# If we have handled any errors on this page and the 'stop_on_errors' config
 	#  option is turned on, return false and don't redirect.
 	function print_header_redirect( $p_url, $p_die = true, $p_sanitize = false ) {
+        global $g_path;
+
 		$t_use_iis = config_get( 'use_iis');
 
 		if ( ON == config_get( 'stop_on_errors' ) && error_handled() ) {
 			return false;
 		}
-		
+
 		# validate the url as part of this site before continuing
 		if ( $p_sanitize ) {
 			$t_url = string_sanitize_url( $p_url );
@@ -40,6 +42,11 @@
 			$t_url = $p_url;
 		}
 
+        # URL should be absolute
+        if (stristr($t_url, 'http://') === FALSE && stristr($t_url, 'https://') === FALSE ) {
+            $t_url = $g_path . $t_url;
+        }
+
 		# don't send more headers if they have already been sent (guideweb)
 		if ( ! headers_sent() ) {
 			header( 'Content-Type: text/html; charset=' . lang_get( 'charset' ) );