I'm not really sure whether this is a doc bug or a regular bug, so I figured I would open a thread here to figure out which.
If you use `rescue_from Exception` to render a dynamic 500 page with your application layout, and the exception was triggered from the application layout to begin with, it will escape the dynamic error page and render the one in `public`. Granted, this sounds obvious, but the documentation for rescue_from states that "Exceptions raised inside exception handlers are not propagated up," when in this situation that's clearly not the case. I have a reproduction of this issue here: https://github.com/timraymond/rails-issue-rescue-from and a Docker image of it, if that's your cup of tea: https://registry.hub.docker.com/u/timraymond/rails-issue/ (docker pull timraymond/rails-issue). If you visit the "/explode" path, the exception raised there will be successfully caught by the dynamic 500 page. If you visit the "/greet/:name" path, it will escape the dynamic 500 page because of the exception raised in the application layout. The conditional in the layout is contrived, but is intended to represent complex logic that can trigger an exception in the layout when rendering some actions but not others. I see in the edge guides that there's also a way to get this functionality by creating a route for "/500". I'm not sure if this would be similarly affected if an exception was raised by a layout, but it's something to consider as well, and perhaps someone who is more familiar with that feature can chime in :) Let me know if I should open this up on GitHub as an issue, or if docrails needs to be updated to reflect that some exceptions can escape. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-core+unsubscr...@googlegroups.com. To post to this group, send email to rubyonrails-core@googlegroups.com. Visit this group at http://groups.google.com/group/rubyonrails-core. For more options, visit https://groups.google.com/d/optout.
