I developed a hybrid application using Ionic and when I sent it to the Apple Store review it was rejected, I got the following error message:
We discovered one or more bugs in your app when reviewed on iPad and iPhone running iOS 9.3.5 on Wi-Fi connected to an IPv6 network.
Specifically, after we launched your app, an error message appeared.
The steps to reproduce are:
Launch app Note error message
They say that IPv6 support is needed, but that's all they say, without giving any more useful information. I can not test the app on an IPv6 network at the moment. I have already seen how it does to connect one on the mac, but I do not have an adapter for network cable, I use WiFi only.
I researched a lot and saw several responses saying it was an error in the way requests are made to the APIs / servers or a configuration error on the server / API itself.
I do not know how to solve this, the app usually runs under normal conditions (IPv4 in an IP network) without any problem, everything is perfect.