Nginx 配置

location / {
	#CORS 配置
	add_header 'Access-Control-Allow-Origin' '*';
	add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, PUT, DELETE';
	#是否允许cookie传输
	add_header 'Access-Control-Allow-Credentials' 'true';
	add_header 'Access-Control-Allow-Headers'
		'Authorization,Content-Type,Accept,Origin,User-Agent,DNT,Cache-Control,X-Mx-ReqToken,X-Data-Type,X-Requested-With,X-Data-Type,X-Auth-Token';

	#针对浏览器的options预请求直接返回200，否则会被403 forbidden--invalie CORS request
	if ( $request_method = 'OPTIONS' ) {
		return 200;
	}
}