DOM Ancestry of non-standard HTML4 attributes

ancestry-of-attributes.js

var ancestryOfAttributes = function(targetNode){
  result = [];
  while(targetNode.parentNode){
    var attrs = [];
    for(var i=0; i<targetNode.attributes.length; i++){ attrs.push(targetNode.attributes[i].nodeName); }
    result.unshift(attrs.join(","));
    targetNode = targetNode.parentNode
  }
  return JSON.stringify(result, undefined, 4);
};
if($0){ ancestryOfAttributes($0); }