title: Rails 5.2 exceptions not showing
body: <p>I upgraded from 5.1 to 5.2 and now my exceptions are not showing, and I'm seeing the 500 error page, as if I had <code>config.consider_all_requests_local</code> set to false... it's set to <code>true</code> in my <code>development.rb</code> however.</p>
  
  <p>Also, as a sidenote, when the exception happens theres <em>literally</em> <strong>10 seconds</strong> of log output in the terminal before rails responds. It's so much log output that I can't even scroll to see if the error is being triggered by something else.</p>