Seems like you really don’t want anybody to access the demo of your application ;-).
First the link to the demo is unclickable (the button is deactivated). By using the browser tools to inspect the side one gets the url anyway. But then there are no credentials written anywhere.
Empty credentials are not accepted.
so hmmm how to access the demo?
I know I can install the application to try it out, but if I do that with each one I want to try out I will get nowhere…