packages/building-webpack/dom5-fork/index.js
function removeFakeRootElements(ast) {
  var injectedNodes = queryAll(
    ast,
    AND(function(node) {
      return !node.__location;
    }, hasMatchingTagName(/^(html|head|body)$/i)),
    undefined,
    // Don't descend past 3 levels 'document > html > head|body'
    function(node) {
      return node.parentNode && node.parentNode.parentNode ? undefined : node.childNodes;
    },
  );
  injectedNodes.reverse().forEach(removeNodeSaveChildren);
}
function removeFakeRootElements(ast) {
  var injectedNodes = queryAll(
    ast,
    AND(function(node) {
      return !node.__location;
    }, hasMatchingTagName(/^(html|head|body)$/i)),
    undefined,
    // Don't descend past 3 levels 'document > html > head|body'
    function(node) {
      return node.parentNode && node.parentNode.parentNode ? undefined : node.childNodes;
    },
  );
  injectedNodes.reverse().forEach(removeNodeSaveChildren);
}
function removeFakeRootElements ( ast ) { var injectedNodes = queryAll ( ast , AND ( function ( node ) { return ! node . __location ; } , hasMatchingTagName ( / ^(html|head|body)$ / i ) ) , undefined , // Don't descend past 3 levels 'document > html > head|body' function ( node ) { return node . parentNode && node . parentNode . parentNode ? undefined : node . childNodes ; } , ) ; injectedNodes . reverse ( ) . forEach ( removeNodeSaveChildren ) ; }
When parse5 parses an HTML document with `parse`, it injects missing root
elements (html, head and body) if they are missing.  This function removes
these from the AST if they have no location info, so it requires that
the `parse5.parse` be used with the `locationInfo` option of `true`.
When parse5 parses an HTML document with parse it injects missing root elements ( html head and body ) if they are missing . This function removes these from the AST if they have no location info so it requires that the parse5 . parse be used with the locationInfo option of true .