Undefined variable: $httpsrequired in insert_image.php

lib/editor/htmlarea/popups/insert_image.php

$httpsrequired does not decleared then $url is empty...

We need to insert a statement pointed out 'add from here' - 'add to here'.

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<?php // $Id: insert_image.php,v 1.9.8.2 2009/06/09 04:58:39 jonathanharker Exp $

require("../../../../config.php");

$id = optional_param('id', SITEID, PARAM_INT);
// (Debug025): add from here!
$httpsrequired = optional_param('httpsrequired', 0, PARAM_BOOL); //flag indicating editor on page with required https
// (Debug025): add to here!

require_login($id);
require_capability('moodle/course:managefiles', get_context_instance(CONTEXT_COURSE, $id));

@header('Content-Type: text/html; charset=utf-8');

if ($httpsrequired or (!empty($_SERVER['HTTPS']) and $_SERVER['HTTPS'] != 'off'))

else