nginx 配置跨域、文件限制

 server {
        listen       443 ssl http2;
        server_name  域名;
        ssl_certificate  /opt/ssl/dev.pem;
         ssl_certificate_key /opt/ssl/dev.key;

       ssl_session_cache shared:SSL:1m;
        ssl_session_timeout  10m;
        ssl_ciphers PROFILE=SYSTEM;
        ssl_prefer_server_ciphers on;

        // 上传限制
        client_max_body_size 1024m;
        client_body_buffer_size 1024k; #缓冲区代理缓冲用户端请求的最大字节数
#        root         /usr/share/nginx/html;
        location / {

        # 跨域问题
         add_header Access-Control-Allow-Origin *;
            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,Authorization';
 
            if ($request_method = 'OPTIONS') {
             return 204;
            }
       
        #---------跨域技术------------------------------
            proxy_connect_timeout 90;   #nginx跟后端服务器连接超时时间(代理连接超时)
           proxy_read_timeout 90;      #连接成功后，后端服务器响应时间(代理接收超时)
           proxy_buffer_size 1024k;       #设置代理服务器（nginx）保存用户头信息的缓冲区大小
           proxy_buffers 6 500k;        #proxy_buffers缓冲区，网页平均在32k以下的话>，这样设置
           proxy_busy_buffers_size 1024k; #高负荷下缓冲大小（proxy_buffers*2）
           proxy_temp_file_write_size 1024k; #设定缓存文件夹大小，大于这个值，将从upstream服务器传
           proxy_pass http://localhost:8080/;
#         proxy_set_header referer   "https://dev.yzxapp.com";
         #重构请求头，获取客户端请求的IP地址 
           proxy_set_header Host $host; 
           proxy_set_header X-Real-IP $remote_addr; 
           proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; 
       }
       location /index.html {
           root /opt/project/web/test;
       }
       location /MP_verify_tz4UZVx67JCGUp97.txt {
           root  /opt/project/web/MP_verify_tz4UZVx67JCGUp97.txt;
       }
    }
# http转https
    server {
        listen 80;
        server_name localhost;
        #将请求转成https
        rewrite ^(.*)$ https://$host$1 permanent;
    }