anchor.diff:      }
   
       head.insertBefore(link, canonical);
  -    head.insertBefore(new Text('\n  '), canonical);
     }
   
     void _addMetaNoIndex(Element head) {
  
positive.code:       ..attributes['style'] = 'height: 30px; margin-right: 1em;';
      logoLink.append(imgRef);
      parent.insertBefore(logoLink, breadcrumbs);
      parent.insertBefore(new Text('\n  '), breadcrumbs);
    }
  
    void _addPubPackageLink(Element breadcrumbs, {int level = 1}) {
  
negative.code:       final docitem = new Element.tag('li')
          ..className = 'self-crumb'
          ..text = 'documentation';
        breadcrumbs.append(docitem);
      } else if (breadcrumbs.children.isNotEmpty) {
        // we are inside
        final firstLink = breadcrumbs.querySelector('a');
  