location / {
        root  D:/webroot/online_xinshop/public;
        index  index.html index.php;
        autoindex_exact_size off;
        autoindex_localtime on;
        #add_header Access-Control-Allow-Origin *;
        #add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
        #add_header Access-Control-Allow-Headers Token,Authorization; 
        if ($request_method = OPTIONS ) {
               add_header Access-Control-Allow-Origin *;
               add_header Access-Control-Allow-Headers Token,Origin,X-Requested-With,Content-Type,Accept;
               add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
               add_header Access-Control-Allow-Headers Token,Authorization;
               return 200;
        }

    }

    #对目录设置跨域
    location /upload {
        root  D:/webroot/online_xinshop/public;
        add_header Access-Control-Allow-Origin *;
    #    add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
    #    add_header Cache-Control no-cache;
        if ($request_method = OPTIONS ) { 
               return 200;
        }
    }