Xcode7 beta 网络请求报错:The resource could not be loaded because the App Transport Security policy requir

今天升级Xcode 7.0 bata发现网络访问失败。
输出错误信息

<code style="padding: 0px; color: inherit; white-space: inherit; background-color: transparent;"><span style="font-family:Comic Sans MS;font-size:18px;">The resource could not be loaded because the App Transport Security policy requires the <span class="hljs-operator"><span class="hljs-keyword" style="color: rgb(133, 153, 0);">use</span> <span class="hljs-keyword" style="color: rgb(133, 153, 0);">of</span> a secure <span class="hljs-keyword" style="color: rgb(133, 153, 0);">connection</span>.
</span></span></code>

Google后查证,iOS9引入了新特性App Transport Security (ATS)。详情:App Transport Security (ATS)

新特性要求App内访问的网络必须使用HTTPS协议。
但是现在公司的项目使用的是HTTP协议,使用私有加密方式保证数据安全。现在也不能马上改成HTTPS协议传输。

最终找到以下解决办法:

  1. 在Info.plist中添加NSAppTransportSecurity类型Dictionary
  2. NSAppTransportSecurity下添加NSAllowsArbitraryLoads类型Boolean,值设为YES

参考:

  • App Transport Security support aka apps on iOS 9 don't work #4560
  • 711_networking_with_nsurlsession.pdf

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