code: func newPageStandalone(m *pageMeta, f output.Format) (*pageState, error) {
  	m.configuredOutputFormats = output.Formats{f}
  	m.standalone = true
  	p, err := newPageFromMeta(m)
  
  	if err != nil {
  		return nil, err
  	}
  
  	if err := p.initPage(); err != nil {
  		return nil, err
  	}
  
  	return p, nil
  
  }
docs: // Used by the legacy 404, sitemap and robots.txt rendering