=== modified file 'includes/common.inc'
--- includes/common.inc	
+++ includes/common.inc	
@@ -938,6 +938,9 @@
 
   // The special path '<front>' links to the default front page.
   if (isset($path) && $path != '<front>') {
+    if ($path[0] == '/') {
+      $path = substr($path, strlen($base_path));
+    }
     $path = drupal_get_path_alias($path);
     $path = drupal_urlencode($path);
     if (!$clean_url) {