index.php
@@ -133,7 +133,7 @@ // check client X-header to verify request origin if ($OUTPUT->ajax_call) { if ($RCMAIL->config->get('devel_mode') && !rc_request_header('X-RoundCube-Referer')) { if (!$RCMAIL->config->get('devel_mode') && !rc_request_header('X-RoundCube-Referer')) { header('HTTP/1.1 404 Not Found'); die("Invalid Request"); }