有次项目中用到了前后端分离，nginx做了前端的静态代理。当配置nginx后，访问页面时出现了以下的bug

css文件实际上已经被加载出来了，但是页面却没有显示效果。报错是这样的：
Resource interpreted as Stylesheet but transferred with MIME type text/plain

nginx的配置如下：

events {
    worker_connections  1024;
}

http {

    upstream disconf {
    server 127.0.0.1:8086;
   }

server {
    listen   80;
    server_name disconf.com;
    access_log /nginx-1.10.1/nginx-1.10.1/logs;
    error_log /nginx-1.10.1/nginx-1.10.1/logs;

    location / {
        allow all;
        if ($query_string) {
            expires max;
        }
    }
    set $baseUrl  D:\disconf_html\html;
    root $baseUrl;
    ssi on;

    location ~* /login.html {
        rewrite ^ http://xxxxxxxxx;
    }   

    location ~ ^/(api|export) {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Scheme $scheme;
        proxy_pass http://disconf;
    }   
  }
}

在经过好几个小时的排查后，终于特么知道了是什么原因导致的。原来我http节点里设置以下两个属性：

include mime.types;

default_type application/octet-stream;

如果不设置css文件就会被当作text/plain类型发送到浏览器。从而导致css文件服务显示。设置也比较简单，以下为更新后的nginx.conf文件：

events {
    worker_connections  1024;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    upstream disconf {
    server 127.0.0.1:8086;
   }

server {
    listen   80;
    server_name disconf.com;
    access_log /nginx-1.10.1/nginx-1.10.1/logs;
    error_log /nginx-1.10.1/nginx-1.10.1/logs;

    location / {
        allow all;
        if ($query_string) {
            expires max;
        }
    }
    set $baseUrl  D:\disconf_html\html;
    root $baseUrl;
    ssi on;

    location ~* /login.html {
        rewrite ^ http://xxxxxxxxx;
    }   

    location ~ ^/(api|export) {
        proxy_pass_header Server;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Scheme $scheme;
        proxy_pass http://disconf;
    }   
  }
}

执行 nginx.exe -s reload命令后，再次访问页面后发现：

因缺思厅。问题解决的感觉真爽！