grafana/k6 · error

restoring viewport to %s: %w

Error message

restoring viewport to %s: %w

What it means

Error "restoring viewport to %s: %w" thrown in grafana/k6.

Source

Thrown at internal/js/modules/k6/browser/common/screenshotter.go:410

		if opts.Clip != nil {
			documentRect, err = s.trimClipToSize(&Rect{
				X:      opts.Clip.X,
				Y:      opts.Clip.Y,
				Width:  opts.Clip.Width,
				Height: opts.Clip.Height,
			}, &Size{Width: documentRect.Width, Height: documentRect.Height})
			if err != nil {
				return nil, fmt.Errorf("trimming clip to size: %w", err)
			}
		}

		buf, err := s.screenshot(p.session, documentRect, nil, format, opts.OmitBackground, opts.Quality, opts.Path)
		if err != nil {
			return nil, err
		}
		if overriddenViewportSize != nil {
			if err := s.restoreViewport(p, originalViewportSize); err != nil {
				return nil, fmt.Errorf("restoring viewport to %s: %w",
					originalViewportSize, err)
			}
		}
		return buf, nil
	}

	viewportRect := &Rect{
		X:      0,
		Y:      0,
		Width:  viewportSize.Width,
		Height: viewportSize.Height,
	}
	if opts.Clip != nil {
		viewportRect, err = s.trimClipToSize(&Rect{
			X:      opts.Clip.X,
			Y:      opts.Clip.Y,
			Width:  opts.Clip.Width,
			Height: opts.Clip.Height,

View on GitHub (pinned to 93accf6570)

When it happens

Trigger: Thrown at internal/js/modules/k6/browser/common/screenshotter.go:410 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/358db0b40c110b6f. Report an issue: GitHub.