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Add warning for rescue_from Exception and rescue_from StandardError

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Yuki Nishijima 2014-06-19 18:09:28 -07:00
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guides/source/action_controller_overview.md
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@ -1164,6 +1164,8 @@ class ClientsController < ApplicationController
end
```
WARNING: You shouldn't do `rescue_from Exception` or `rescue_from StandardError` unless you have a particular reason as it will cause serious side-effects (e.g. you won't be able to see exception details and tracebacks during development). If you would like to dynamically generate error pages, see [Custom errors page](#custom-errors-page).
NOTE: Certain exceptions are only rescuable from the `ApplicationController` class, as they are raised before the controller gets initialized and the action gets executed. See Pratik Naik's [article](http://m.onkey.org/2008/7/20/rescue-from-dispatching) on the subject for more information.