nginx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;
            }

        }

#允许跨域请求的域，*代表所有
add_header 'Access-Control-Allow-Origin' *;
#允许带上cookie请求
add_header 'Access-Control-Allow-Credentials' 'true';
#允许请求的方法，比如 GET/POST/PUT/DELETE
add_header 'Access-Control-Allow-Methods' *;
#允许请求的header
add_header 'Access-Control-Allow-Headers' *;

#对源站点验证
valid_referers *.china.cn;
#不是当前当站的引入会进入判断
if ($invalid_referer) {
return 404;
}