search for: actiondispatchshowexcept

...s and it appears as if every browser gets a local error page with a stack trace, etc. I''ve opened up a ticket on the rails bug tracker but I also would like to verify that this is in fact a problem. The bug is here: https://rails.lighthouseapp.com/projects/8994-ruby-on-rails/tickets/5166-actiondispatchshowexception-always-calls-rescue_action_locally-if-there-is-a-reverse_proxy I believe there is a workaround - you could use rescue_from with StandardError but then you are having to reproduce the exception type to http error code logic. I also think this issue will/should be affecting a bunch of other user...