getElementsByTagName('a') return also "article" tag

[emaza]

Hi, getElementsByTagName('a') return also "article" tag version: "0.1.5"

var DomParser = require("dom-parser")
var parser = new DomParser();
var html = `<article>
  <a href='#'> Link </a>
</article>  `
let doc = parser.parseFromString(html);
let aTags = doc.getElementsByTagName('a')
console.log(aTags);
console.log(aTags.length); 
console.log(aTags[0].nodeName); // "article"

Thanks