safehtmlparserTest.user.js

// ==UserScript==
// @id           [email protected]
// @name         GM_safeHTMLParser Test
// @namespace    test
// @include      *
// @author       Erik Vergobbi Vold <[email protected]>
// @license      MIT
// ==/UserScript==

GM_xmlhttpRequest({
  method: "GET",
  url: "http://erikvold.com/",
  onload: function(response) {
    var doc = GM_safeHTMLParser(response.responseText);
    alert(doc.getElementById("hcard-Erik-Vergobbi-Vold").innerHTML);
  }
});