APP STORE审核被拒，因为IPV6 WIFI情况下无法正常登录

  用HB开发了一个app，第一次上线的时候因为后端服务器域名未申请下来，所以用了IP。正常审核通过域名下来后，app里面的ip改成了域名方式，结果苹果审核拒绝，原因是登陆时候有一个认证码显示不出来，其实那个认证码就是需要通过后端服务器域名进行访问。那个认证码地址http://www.pwzjsalt.com/generateImage，我找人在香港，澳洲，北美都测试过，可以访问到的。所以有点怀疑我们这个HB生成的app是否不支持他们所说的纯ipv6环境，顺便说一下网络上那些有个ipv6域名的测试也都做过，而且是在海外测试过了都正常。 下面是苹果拒绝的原文：  

We discovered one or more bugs in your app when reviewed on iPad running iOS 10.2.1 on Wi-Fi connected to an IPv6 network.

The app could not show 驗證碼.

Please see attached screenshots for details.

Next Steps

Please run your app on a device while connected to an IPv6 network (all apps must support IPv6) to identify any issues, then revise and resubmit your app for review.

If we misunderstood the intended behavior of your app, please reply to this message in Resolution Center to provide information on how these features were intended to work.

For new apps, uninstall all previous versions of your app from a device, then install and follow the steps to reproduce the issue. For updates, install the new version as an update to the previous version, then follow the steps to reproduce the issue.

Resources

For information about supporting IPv6 Networks, please refer to Supporting IPv6 DNS64/NAT64 Networks and About Networking.

附件就不贴了，可以确认就是登陆时候认证码出不来，肯定不是程序逻辑问题。所以这里想请咱DCLOUD确认一下通过HB上传云端生成的APP是否支持ipv6还是有什么限制条件。（嗯，顺便抱怨一下上传云端编译，ios app及其不稳定，有时候编译很快，有时候居然卡了半天，晚上7：00上传，第二天才能弄好下载）