Have nice 404 and 500 pages

[sophiedeziel]

The error pages should look like the other parts of the website and not be as scary as the default ones.

[benichu]

👍

[cawel]

Handling the 404 is easy as you can catch the RecordNotFound error at the ApplicationController level and from there render a custom page. However, for 5XX errors, a ton of errors can occur, and it would be silly to list all types of errors.

Here is a good SO thread for a Rails 4 solution. In a nutshell, it routes the status error codes to a custom ErrorsController from within the config/routes.rb file. It remains to be seen if that would also work for Rails 5. Unless some of you have a better alternative?