When the user enters an app domain and taps the Next button, there's no indication that the app is doing anything and the button stays enabled.
Some indication should appear and the user should be prevented from repeatedly triggering multiple network calls.
Most probable option is to present a model panel with a progress indicator and a cancel button.
Also check the other operations in the setup wizard that might require the same mechanism.
When the user enters an app domain and taps the Next button, there's no indication that the app is doing anything and the button stays enabled.
Some indication should appear and the user should be prevented from repeatedly triggering multiple network calls.
Most probable option is to present a model panel with a progress indicator and a cancel button.
Also check the other operations in the setup wizard that might require the same mechanism.