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Best practices for error handling within MVC (that correctly account for all scenarios)

Correct error handling is more complicated than just working with HandleErrorAttribute or <customErrors>. Good error handling should account for a variety of scenarios:
* 404 errors that preserve the path and return the correct error code
* 500 status codes for uncaught exceptions
* Dealing with errors that operate outside of the context of a controller (which may not be matched)
* Pages that result in errors likely shouldn't be cached, especially if the error is transient
* Accounting for the possibility of unsafe paths in the request
* Logging errors so that they're not lost
* Rendering error pages that preserve a site's layout

There is competing (and misleading?) information out there, both within ASP.NET documentation and provided by users. Any direction would be greatly appreciated!

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Tim Mackenzie shared this idea  ·   ·  Flag idea as inappropriate…  ·  Admin →

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  • Vince commented  ·   ·  Flag as inappropriate

    In addition, I’d like to see how to handle exceptions triggered by AJAX calls.
    How to globally handle 400, 401, 403, 404, 500 and perhaps show a bootstrap modal for example.

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