How Apple review hidden app pages like "maintenance page"...

I'm intended to implement a "maintenance screen" in the future, to inform the user that the server is in maintenance and it won't respond the user request.

My question is the same as the title, how could Apple review that page? Put the server in maintenance state just for apple test that would be a bad practice for the users.

Apple won't ever see that page, will they?

Perhaps you are imagining that App Review need to see 100% of you app's functionality, including its error handling. That is not the case.

How Apple review hidden app pages like "maintenance page"...
 
 
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