import { importIntersectionObserver, importRequestIdleCallback, importIndexedDBGetAllShim, importWebAnimationPolyfill } from './asyncModules' export function loadPolyfills () { return Promise.all([ typeof IntersectionObserver === 'undefined' && importIntersectionObserver(), typeof requestIdleCallback === 'undefined' && importRequestIdleCallback(), !IDBObjectStore.prototype.getAll && importIndexedDBGetAllShim(), !Element.prototype.animate && importWebAnimationPolyfill() ]) }