-if ((!empty($_POST['url'])) || (!empty($_GET['url'])) || (!empty($_GET['frame']))) {
- $url = URL;
- if (!empty($_POST['url'])) $url = $_POST['url'];
+if ((REQUEST_ISSET_POST('url')) || (REQUEST_ISSET_GET('url')) || (REQUEST_ISSET_GET('frame'))) {
+ // Default URL is ours
+ $url = constant('URL');
+
+ // Decode URL if set in GET parameters
+ if (REQUEST_ISSET_GET('url')) $url = decodeString(str_replace(' ', '+', compileUriCode(urldecode(REQUEST_GET('url')))));