has been blocked by CORS policy: Response to preflight request doesn‘t pass access control check:

Access to XMLHttpRequest at '**********************' from origin '*****' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status.

经过检查发现是JQ的版本底，升级JQ版本即可 

建议：jquery-1.9.1.min.js