GTM virtualPagePath Variable

virtualPagePath.js

function virtualPagePath() {
    /**
     * Get the URL parameters
     * source: https://css-tricks.com/snippets/javascript/get-url-variables/
     * @param  {String} url The URL
     * @return {Object}     The URL parameters
     */
    var getParams = function (url) {
        var params = {},
            parser = document.createElement('a');

        parser.href = url;
        var query = parser.search.substring(1),
            vars = query.split('&');

        for (var i = 0; i < vars.length; i++) {
            var pair = vars[i].split('=');
            params[pair[0]] = decodeURIComponent(pair[1]);
        }

        return params;
    };
  
    var pagePath = location.pathname,
        queryParams = getParams(window.location.href),
        queryParamsStr = '';

    queryParams = (queryParams ? queryParams : {});
    if (queryParams && Object.keys(queryParams).length) {
      for (var key in queryParams) {
        if (key.indexOf('utm_') === -1) { // Exclude UTM Parameters
          queryParamsStr += 'QS';
          queryParamsStr += '/' + key;
          queryParamsStr += '/' + queryParams[key];
          queryParamsStr += '/';
        }
      }

      if (key.length) {
        if (pagePath && pagePath !== '' && pagePath[pagePath.length-1] !== '/') {
          pagePath = pagePath + '/'
        }
        pagePath = pagePath + queryParamsStr;
      }
    }

    return pagePath;
}