Proxy Settings…异常

https://www.jianshu.com/p/6ad09374053b

https://stackoverflow.com/questions/33011466/ios-using-charles-with-alamofire-and-ssl

https://stackoverflow.com/questions/15768143/ios-app-ssl-handshake-failed

On iOS11 I missed this additional step. 

In the Settings app, 

Navigate to General.About.Certificate settings.

Enable the Charles Proxy SSL Proxying switch.

第一步：

设置->通用->描述文件->charles proxy custom root certificate

第二步：

设置->通用->关于本机->证书信任设置-> 找到charles proxy custom root certificate然后信任该证书即可.