错误描述：
App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure. Temporary exceptions can be configured via your app‘s Info.plist file.
在iOS9 beta中，苹果将原http协议改成了https协议，使用 TLS1.2 SSL加密请求数据。
解决方法：
在info.plist 加入key
<key>NSAppTransportSecurity</key> <dict> <key>NSAllowsArbitraryLoads</key> <true/> </dict>
参考资料:
App Transport Security has blocked a cleartext HTTP (http://)
原文：http://www.cnblogs.com/voidcat/p/4881194.html