authentication : Add X-Frame-Options "SAMEORIGIN" to authentication page

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@4284 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

authentication.php

@@ -128,6 +128,7 @@ class authentication
       $alreadyAuth = $pre->email;
     if ($this->appName !== null)
       $auth->appName = $this->appName;
+    @header ('X-Frame-Options: SAMEORIGIN');
     echo $auth->pageHTML ($this->route->baseURL(), $message, $url,
                           $alreadyAuth);
   }