message: Fix languageHandler's use of $webapp languages.json for Jest
diff: @@ -419,9 +419,9 @@ export function pickBestLanguage(langs) {
  function getLangsJson() {
  return new Promise(async (resolve, reject) => {
  let url;
  - try {
  + if (typeof(webpackLangJsonUrl) === 'string') { // in Jest this 'url' isn't a URL, so just fall through
  url = webpackLangJsonUrl;
  - } catch (e) {
  + } else {
  url = i18nFolder + 'languages.json';
  }
  request(
  