Basic authentication in ASP.NET MVC 5

Question

What steps must be done to implement basic authentication in ASP.NET MVC 5?

I have read that OWIN does not support cookieless authentication, so is basic authentication generally possible?

Do I need a custom attribute here? I am not sure about how these attributes work.

Answer 1

An application of ours "accidentally" used basic authentication because of the following code in Web.config:

<system.webServer>
    <modules>
        <remove name="FormsAuthentication" />
    </modules>
    ... other stuff
</system.webServer>

The application is otherwise configured to use forms authentication. The browser authentication window popped up whenever normal forms authentication would otherwise have been used.