renderServer don't support Extension,don't deal with /link.php?url=aHR0cDovL2RlYWxlci5iaXRhdXRvLmNvbS8xMDAxMzQ5MDcvcHJpY2VfZGV0YWlsLzEzMzgzNy5odG1sP2xlYWRzX3NvdXJjZT1wMDQwMDAy