title: Rails 5 way to handle ActionController::ParameterMissing
body: <p>If a parameter that's required is missing using strong parameters, the Rails server will respond with an HTTP 500.</p>
  
  <p>This does not give me control over giving the user feedback with what exactly went wrong. Does it not make sense to be able to send them back a message such a required parameter is missing?</p>
  
  <p>What is the "Rails way" of giving appropriate user feedback on <code>ActionController::ParameterMissing</code>? Is one supposed to capture the exception and handle your request response there? It seems wrong to do that in every controller. </p>