removeScript(source) {
      let src = window.bdlBaseHref ? window.bdlBaseHref + source : source;
      let tags = document.getElementsByTagName('script');
      for (let i = tags.length; i >= 0; i--) { //search backwards within nodelist for matching elements to remove
        if (tags[i] && tags[i].getAttribute('src') !== null && tags[i].getAttribute('src').indexOf(src) !== -1) {tags[i].parentNode.removeChild(tags[i]);} //remove element by calling parentNode.removeChild()