code: function findRegionlessElms(virtualNode) {
  	const node = virtualNode.actualNode;
  	// End recursion if the element is a landmark, skiplink, or hidden content
  	if (
  		isRegion(virtualNode) ||
  		(dom.isSkipLink(virtualNode.actualNode) &&
  			dom.getElementByReference(virtualNode.actualNode, 'href')) ||
  		!dom.isVisible(node, true)
  	) {
  		return [];
  
  		// Return the node is a content element
  	} else if (dom.hasContent(node, /* noRecursion: */ true)) {
  		return [node];
  
  		// Recursively look at all child elements
  	} else {
  		return virtualNode.children
  			.filter(({ actualNode }) => actualNode.nodeType === 1)
  			.map(findRegionlessElms)
  			.reduce((a, b) => a.concat(b), []); // flatten the results
  	}
  }
docs: Find all visible elements not wrapped inside a landmark or skiplink