sbtnh

// Changes XML to JSON
// Modified version from here: http://davidwalsh.name/convert-xml-json
xmlToJson(xml) {
  // Create the return object
  let obj = {};

  if (xml.nodeType === 1) { // element
    // do attributes
    if (xml.attributes.length > 0) {
      obj['@attributes'] = {};

sbtnh

// Explicitly save/update a url parameter using HTML5's replaceState().
function updateQueryStringParam(key, value) {
    const baseUrl = [location.protocol, '//', location.host, location.pathname].join('');
    const urlQueryString = document.location.search;
    let newParam = key + '=' + value;
    let params = '?' + newParam;

    // If the "search" string exists, then build params from it
    if (urlQueryString) {
        const keyRegex = new RegExp('([\?&])' + key + '[^&]*');