Rails `ActionController::RoutingError` Not Being Reported As Default

[berniechiu]

Describe the bug

Rails ActionController::RoutingError not being reported, others look normal as expected.

Environment

• Bugsnag version: 6.25.2
• Ruby version: 3.2.3
• Bundle version: 2.4.19
• Integration framework version:
  • Rails: 7.0.8

Example code snippet

Bugsnag.configuration.ignore_classes
# => #<Set: {SystemExit, SignalException}>

Error messages:

``` # Server Logs # ActionController::RoutingError (No route matches [GET] "/storefront/ba_tracking.js-1234567.map" ```

[mclack]

Hi @berniechiu

Thanks for your patience here.

In Rails, we capture errors as they are raised through the Rack server. If a request raises an error, we capture and notify it. After looking into this, it appears ActionController::RoutingError is not actually being raised through Rack. It's instead responding with the error page and not raising an error, presumably to keep the application running as it hasn't entered a failure state (which 4xx errors traditionally aren't).

We have now added a task to our backlog to look into changing this, so that these errors are able to be automatically reported. I can't currently give an ETA on when this could be implemented, but if you explicitly raise a RoutingError in the meantime, it should be caught and notified.

We'll make sure to update this thread with any developments around automatic reporting for these errors.

[berniechiu]

Thanks a lot