load it\'s script.', e);
                }
                document.head.appendChild(adLibScript);
              }
            }

            var adLibPreload = document.querySelector('#ad-lib-preload');
            if (adLibPreload) {
              adLibPreload.onload = loadAdLib;
            }

            var linkSupportsPreload = DOMTokenListSupports(document.createElement('link').relList, 'preload');

            if (!linkSupportsPreload) {
              console.log('linkSupportsPreload not supported!');
              loadAdLib();
            }