CORS是一种Web浏览器技术规范，它定义了Web服务器允许其资源被来自不同域的Web页面访问的方式。
CORS,is a web browser technology specification, which defines ways for a web server to allow its resources to be accessed by a web page from a different domain.
CORS,is a web browser technology specification, which defines ways for a web server to allow its resources to be accessed by a web page from a different domain.