grafana/k6 · error

invalid category filter %q: %w

Error message

invalid category filter %q: %w

What it means

Error "invalid category filter %q: %w" thrown in grafana/k6.

Source

Thrown at internal/js/modules/k6/browser/log/logger.go:160

			return f.Func.Name(), fmt.Sprintf("%s:%d", f.File, f.Line)
		}
	}
	l.SetFormatter(&logrus.TextFormatter{
		CallerPrettyfier: caller(),
		FieldMap: logrus.FieldMap{
			logrus.FieldKeyFile: "caller",
		},
	})
	l.SetReportCaller(true)
}

// SetCategoryFilter enables filtering logs by the filter regex.
func (l *Logger) SetCategoryFilter(filter string) (err error) {
	if filter == "" {
		return nil
	}
	if l.categoryFilter, err = regexp.Compile(filter); err != nil {
		return fmt.Errorf("invalid category filter %q: %w", filter, err)
	}
	return nil
}

View on GitHub (pinned to 93accf6570)

When it happens

Trigger: Thrown at internal/js/modules/k6/browser/log/logger.go:160 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of grafana/k6@93accf6570 (2026-08-15). Data as JSON: /api/errors/b73d0e602d91df41. Report an issue: GitHub.