renderServer don't support Extension,don't deal with /link.php?url=aHR0cDovL2RlYWxlci5iaXRhdXRvLmNvbS8xMDAxMDc4MTcvcHJpY2VfZGV0YWlsLzEzNjU5OC5odG1sP2xlYWRzX3NvdXJjZT1wMDQwMDAy