if ($request_method = 'OPTIONS') {         add_header Access-Control-Allow-Origin *;         add_header Access-Control-Allow-Credentials true;         add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS';         add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';         return 200;     }      if ($request_method = 'POST') {        add_header 'Access-Control-Allow-Origin' *;         add_header 'Access-Control-Allow-Credentials' 'true';         add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';         add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';     }     if ($request_method = 'GET') {        add_header 'Access-Control-Allow-Origin' *;         add_header 'Access-Control-Allow-Credentials' 'true';         add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';         add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';     }          ################################     if ($request_method = 'OPTIONS') { add_header Access-Control-Allow-Origin *; add_header Access-Control-Allow-Credentials true; add_header Access-Control-Allow-Methods 'GET, POST, OPTIONS'; add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; return 200; }if ($request_method = 'POST') {add_header 'Access-Control-Allow-Origin' *; add_header 'Access-Control-Allow-Credentials' 'true'; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';}if ($request_method = 'GET') {add_header 'Access-Control-Allow-Origin' *; add_header 'Access-Control-Allow-Credentials' 'true'; add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS'; add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';}