App Transport Security has blocked a cleartext HTTP (http://) resource load since it is insecure.解决办法
或者在这个对应的Source Code中添加
<key>NSAppTransportSecurity</key> <dict> <key>NSExceptionDomains</key> <dict> <key>baidu.com</key> <dict> <key>NSExceptionAllowInsecureHTTPLoads</key> <true/> <key>NSIncludesSubdomains</key> <true/> <key>NSExceptionRequiresForwardSecrecy</key> <false/> </dict> </dict> <key>NSAllowsArbitraryLoads</key> <true/> </dict>