#0 [internal function](): Acms\{closure}(2, 'Cannot modify header information - headers already sent by (output started at /home/users/0/dr-wanwan/web/test/index.php:4)', '/home/users/0/dr-wanwan/web/test/php/Services/Common/Helper.php', 199, Array)
#1 /home/users/0/dr-wanwan/web/test/php/Services/Common/Helper.php(199): header('X-FRAME-OPTIONS: SAMEORIGIN')
#2 [internal function](): addSecurityHeader()
#3 /home/users/0/dr-wanwan/web/test/php/Services/Facades/Facade.php(81): call_user_func_array(Array, Array)
#4 /home/users/0/dr-wanwan/web/test/php/main.php(2120): __callStatic('addSecurityHeader', Array)
#5 /home/users/0/dr-wanwan/web/test/index.php(79): require_once('/home/users/0/dr-wanwan/web/test/php/main.php')