header("Access-Control-Allow-Origin: * ");
header("Access-Control-Allow-Methods: OPTIONS,GET,POST,PUT,DELETE,PATCH");
header("Access-Control-Allow-Headers: Origin,X-Requested-With,Content-Type,Accept,sign,token,timestamp,version,language,currency");

=====================================================================================================================
在http下加，WL用此方式nginx和代码中 只需要修改一个即可
add_header Access-Control-Allow-Origin *;
add_header Access-Control-Allow-Headers X-Requested-With,sign,token,timestamp,version,language,currency,content-type;
add_header Access-Control-Allow-Methods OPTIONS,GET,POST,PUT,DELETE,PATCH;

location / {
  if ($request_method = 'OPTIONS') {
    add_header Access-Control-Allow-Origin *;
    add_header Access-Control-Allow-Headers X-Requested-With,sign,token,timestamp,version,language,currency,content-type;
    add_header Access-Control-Allow-Methods GET,POST,PUT,DELETE,PATCH,OPTIONS;
    return 204;
  }
}
=====================================================================================================================


==nginx和代码中 只需要修改一个即可
#
# Wide-open CORS config for nginx
#
location / {
     if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        #
        # Custom headers and headers various browsers *should* be OK with but aren't
        #
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
        #
        # Tell client that this pre-flight info is valid for 20 days
        #
        add_header 'Access-Control-Max-Age' 1728000;
        add_header 'Content-Type' 'text/plain; charset=utf-8';
        add_header 'Content-Length' 0;
        return 204;
     }
     if ($request_method = 'POST') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
     }
     if ($request_method = 'GET') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
     }
}