Enhancements

• Support unwrapping the underlying causes from an error, including attached stack trace contents if available.

  Any reported error which implements the following interface:

  type errorWithCause interface {
    Unwrap() error
  }

  will have the cause included as a previous error in the resulting event. The cause information will be available on the Bugsnag dashboard and is available for inspection in callbacks on the errors.Error object.

  bugsnag.OnBeforeNotify(func(event *bugsnag.Event, config *bugsnag.Configuration) error {
    if event.Error.Cause != nil {
      fmt.Printf("This error was caused by %v", event.Error.Cause.Error())
    }
    return nil
  })