nginx配置允许跨域

        location /Tileset/ {
            root  Tileset;
            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‘;  # 如果有自定义head，需要添加在此处

            if ($request_method = ‘OPTIONS‘) {
                return 204;
            }
        }