Locale lazy-loading breaks for me when running production build

Hi, I could use some help with getting lazy-loading of locale files to work when running my application in production. I bootstrapped the project with create-react-app and it works in development but running the production build yields the following error, originating in the webpack function webpackAsyncContext

Uncaught (in promise) TypeError: undefined is not a function

but the previous step in the stack trace was the await import in my I18nLoader component’s loadCatalog function which looks like this:

loadCatalog = async language => {
    // prettier-ignore
    const catalog = await import(
      /* webpackMode: "lazy", webpackChunkName: "i18n-[index]" */
      `../../locale/${language}/messages.js`);

    this.setState(state => ({
      catalogs: {
        ...state.catalogs,
        [language]: unpackCatalog(catalog),
      },
    }));
  };

I’m guessing there’s some configuration I’m missing but I can’t figure it out and would appreciate some help!

[ludwigbacklund]

It’s all good dude, js-lingui is amazing so thanks for doing what you do!

[ludwigbacklund]

Disregard, it was me being a doofus! I had put babel-polyfill in devDependencies which means the await import broke when running in production.