program/include/rcube_shared.inc
@@ -1218,8 +1218,12 @@ // send header with expire date 30 days in future function send_future_expire_header() { if (!headers_sent()) header("Expires: ".gmdate("D, d M Y H:i:s", mktime()+2600000)." GMT"); if (headers_sent()) return; header("Expires: ".gmdate("D, d M Y H:i:s", mktime()+2600000)." GMT"); header("Cache-Control: "); header("Pragma: "); }