Request.IsAuthenticated returns false when using Intelligencia rewriter for ASP.NET

Question

I'am using Intelligencia rewriter for ASP.NET. Now I added forms authentication to the project and for some reason on the seo friendly pages (.html) the Request.IsAuthenticated property is always false. I can see that the cookie is created fine with fiddler. When i visit any other .aspx page I can see that the same property is true. Obviously this is related to the rewriter, however I could not find any solution for it at all.

Answer 1

Check out Troubleshooting Forms Authentication and the FormsAuthLogger.

For reference, Microsoft has a detailed article on what are the moving parts and processes.

Answer 2

I spent quite some time on this reading all the solutions out there on the Internet, but in my case it finally boiled down to being a missing web.config setting :

<authentication mode="Forms">
    <forms loginUrl="~/User/LogIn" timeout="2880" />  
</authentication>

If there's no authentication specified, no authentication will be used although you might have a auth cookie present.