Hi Techblues,
Examples I've deployed quickly that work on all Windows and a minority of MacOS/iOS devices:
https://random.iamonthe.cloud
https://certtest.rightflank.app (a successful tls connection expects a no healthy upstream response)
^Can you load the above endpoints? Half of my team on MacOS cannot load these.
Related threads;
Related article:
Update: Fixed on Mac and iOS by providing the full chain - works for both default and alt chain.