After you have setup your Yii2 advanced application, you now have setup your user authentication for both frontend and backend. However, if you have first logged into frontend, and try to access backend from the same client machine, you see no login screen, but find yourself automatically logged in.
So I've been busy making lots of modifications to my views/models/controllers - came to test the app and got a blank screen. Nothing in the application.log file so must be a syntax error somewhere... But which file?