1. iOS9中HTTPS->HTTP
//全部允许
<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>
//添加例外
<key>NSAppTransportSecurity</key>
<dict>
<key>NSExceptionDomains</key>
<dict>
<key>qq.com</key>
<dict>
<key>NSIncludesSubdomains</key>
<true/>
</dict>
<key>sina.com.cn</key>
<dict>
<key>NSIncludesSubdomains</key>
<true/>
</dict>
</dict>
</dict>