How to make custom error pages work in ASP.NET MVC 4

Question

I want a custom error page shown for 500, 404 and 403. Here\'s what I have done:

1. Enabled custom errors in the web.config as follows:

Answer 1

You can get errors working correctly without hacking global.cs, messing with HandleErrorAttribute, doing Response.TrySkipIisCustomErrors, hooking up Application_Error, or whatever:

In system.web (just the usual, on/off)

and in system.webServer

Now things should behave as expected, and you can use your ErrorController to display whatever you need.