I'm following the approach of this answer: https://stackoverflow.com/a/620559/2274562
Until last week, everything is running fine. I was using vs2012 and the error works greats, the result was like this one result here: http://instarating.validando.com.br/asdasd
But this week I upgraded my vs to vs2013. After a lot of headache with mvc5 upgrades, I stuck again in this one. Now, the approach to error handling, just gave me an html page, like this image.
Apparently, the web.config is ok. I dont know either how to search for this problem in google, and waste like 2hours by now.
Thanks in advance