ASP.NET MVC中 跨域访问问题

错误代码：
Access to XMLHttpRequest at ‘http://localhost:8765/api/Me’ from origin ‘null’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: It does not have HTTP ok status.

解决方法：

转载自：https://www.cnblogs.com/tiger2soft/p/5711173.html