iOS Simulator not works on https, all https are evaluated as not trusted

Question

The Simulator Version 10.0 (SimulatorApp-835.2.1), the Xcode version is 9.1

Seems that all the https connections are evaluated as not trasted, it is affected after the upgrade of Xcode and simulator.

I'm sure that the https connection are with valid certificate also because the same https://support.apple.com get Not trusted problem inside the simulator.

With safari I get some details about "not trusted" site

clicking on

showDetails

and

view the certificated

the result is the follow:

I already tried to:

• rest the simulator
• erase all content and settings
• delete the certificate from keychain
• delete both OCSP and CRL cache

without any result.