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- // Convenience function to load polyfills and return a promise when it's done.
- // If there are no polyfills, then this is just Promise.resolve() which means
- // it will execute in the same tick of the event loop (i.e. near-instant).
- import { loadIntlPolyfills } from './intl';
- function importExtraPolyfills() {
- return import(/* webpackChunkName: "extra_polyfills" */ './extra_polyfills');
- }
- export function loadPolyfills() {
- // Safari does not have requestIdleCallback.
- // This avoids shipping them all the polyfills.
- const needsExtraPolyfills = !window.requestIdleCallback;
- return Promise.all([
- loadIntlPolyfills(),
- // eslint-disable-next-line @typescript-eslint/no-unnecessary-condition -- those properties might not exist in old browsers, even if they are always here in types
- needsExtraPolyfills && importExtraPolyfills(),
- ]);
- }
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