Yes, Engines are considered part of the framework level rather than the application level. If I developed an engine and released it as a gem, you wouldn't want my lines littering your application stack trace, right?
Cheers,
Andy

Andy Jeffries Ruby on Rails, RubyMotion, jQuery Developer & Taekwondo 6th Dan Instructor
andyjeffries.co.uk +44 7939 164853 @andyjeffries fb.com/andyjeffriesOn 7 July 2014 12:04, David Morales <davidmoralesmojica@gmail.com> wrote:
I'm developing a Rails engine, and when debugging an error through the default Rails error page, I find that the Application trace shows nothing, while Framework trace and Full trace show the trace.--Is this intended for an engine?
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/76da4720-e598-4550-9e56-9f832ceb6623%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-talk+unsubscribe@googlegroups.com.
To post to this group, send email to rubyonrails-talk@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CANRNWfi18KT2si%3D-5%2B8PP%2BM0WWb8NaugQAL%2BJ%3DkMBGvFESZstw%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.