Question

使用以下nginx配置代码段：

if ($request_method = OPTIONS) {
  add_header 'Access-Control-Allow-Origin' '*';
  add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, HEAD';
  add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
  add_header 'Access-Control-Max-Age' 1728000;
  add_header 'Content-Type' 'text/plain charset=UTF-8';
  add_header 'Content-Length' 0;
  return 204;
}
if ($request_method != OPTIONS) {
  add_header 'Access-Control-Allow-Origin' '*';
  add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, HEAD';
  add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';
}

无论请求类型如何，标头都不会应用于响应。

如果if语句被完全删除，只留下以下内容就可以了：

add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, HEAD';
add_header 'Access-Control-Allow-Headers' 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type';

从我所看到的有两个相反的条件，似乎都没有被评估。

Nginx没有评估条件

0 个答案: