I try to achieve something like this.
My App runs on xyz.azurewebsites.net . Now I want that the CNAME 123.azurewebsites.net redirects to xyz.azurewebsites.net
123.azurewebsites.net --> xyz.azurewebsites.net
I tried to add that CNAME in the Azure portal under custom domains put everytime I click "Add Custom Domain" I get the alert Message "Your unsaved edits will be discarded." And when I click "Ok" nothing happen.
In my notifications I get the message "Failed to add hostname 123.azurewebsites.net. 123.azurewebsites.net is invalid."
Is this a problem because I try to redirect from one "azurewebsites" domain to another "azurewebsites" domain or do I miss out something?