Asp.net Mvc 4 Custom Error Pages
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make custom error pages work in ASP.NET MVC 4 up vote 168 down vote favorite 82 I want a custom error page shown for 500, 404 and 403. Here's what I have done: Enabled custom errors in the web.config as follows:
30, 2013 by trailmax | 3 Replies It is vital for your application security not to show any internals when error happen. And you should be able to replace all internal error messages to nice user-friendly pages. It is a just nice for users - they are not getting splashes of oil, when engine is exploded, also another measure to improve site security. There are lot of articles about error handling in ASP.Net MVC, but most of them do not cover the whole range. There is a very good resource on this, and I do recommend reading and understanding that first. With error handling there are a lot of edge cases, and for every single one of them you need to provide a solution, otherwise your error messages will talk too loud about your implementation and that can lead to security vulnerability. Upd 18/03/2016 There are a ton of similar articles on this topic. Here are some nice ones: Ben Foster - probably this one is the most comprehensive and worth reading first. Mahesh Sabnis Milevis Here is the list of edge cases I came up with: Exception thrown in controller Controller or controller action is not found Page not found, but outside of the MVC pipeline Exception in IIS pipeline Cases when IIS can't handle the request all together. Exception thrown in controller. When exceptions are thrown in your code, most of the time they will be thrown in MVC pipeline and handled by MVC error handling mechanisms. First of all you need enable CustomErrors in web.config: