We do not have a es6 bundle, you could try using require instead ? or loading a script this way ?
const loadScriptAsync = function (url, instantResolve) {
return new Promise((resolve) => {
const urlToLoad = "yourURL";
const script = document.createElement("script");
script.src = urlToLoad;
script.onload = () => {
resolve();
};
script.onerror = (e) => {
reject(e);
};
document.head.appendChild(script);
});
};