There are problems with Apple devices, maybe something is wrong with the Mikrotik setting or maybe UniFi?

Question

Apple

When an Apple device is connected to a guest hotspot, the authorization page does not appear, aka CNA, despite the fact that everything is ok on Android.
Add. Information:
Provider - Rostelecom
Service Provider Captive Portal - WiFly
Route - Mikrotik
Transport - UniFi
The instruction from the official authorization site did not help, superspecialists are also unable to help.
Apple requests "Success" from its servers; if the answer is yes, then CNA will not work.

Answer 1

The problem was solved by searching and removing the words "Success" from the authorization page.
Who knew that everything is so banal with Apple ..
Perhaps this information will be useful.

Answer 2

Did the official instructions work?
https://wiki.wifly.net/?p=376

Answer 3

So you set the opposite so that the window does not open.
The essence of the robots is approximately the following. ios refers to some random address if it receives success content, then it considers that there is Internet and the CNA window does not display. If content other than SUCCESS is received, a CNA window is displayed with the content received.