ihk24/templates/source/js/components/webforms-index.js

// Polyfills für IE11, why are we still supporting it?
import "core-js/features/symbol"
import "@webcomponents/webcomponentsjs/webcomponents-bundle.js";
import "@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js";
// IE 11 Polyfils end

import "./WebformsComponent"