remove topLevelAwait experiment

src/index.js

@@ -39,7 +39,7 @@ const language = (params && params.hl) ||
 // Make sure names like 'en_GB' and 'en-GB' consistently use '-'.
 const normalized = language.replace('_', '-');
 // Get the base language 'en' from a more specific 'en_GB' or 'en-US' as a partial fallback.
-const baseLanguage = normalized.split(/[-]/)[0].toLowerCase();
+const baseLanguage = normalized.split(/[-_]/)[0].toLowerCase();
 
 // Try the full locale first, then the locale without the region code, fallback to 'en'.
 // const htmlLang = messageLoader[normalized] ? language : messageLoader[baseLanguage] ? baseLanguage : 'en';

umd/index.dev.js

@@ -2321,7 +2321,7 @@ const {
 const language = params && params.hl || navigator.languages && navigator.languages[0] || navigator.language || navigator.userLanguage || 'en';
 
 const normalized = language.replace('_', '-');
-const baseLanguage = normalized.split(/[-]/)[0].toLowerCase();
+const baseLanguage = normalized.split(/[-_]/)[0].toLowerCase();
 
 const htmlLang = _messages_json__WEBPACK_IMPORTED_MODULE_3__[normalized] ? language : _messages_json__WEBPACK_IMPORTED_MODULE_3__[baseLanguage] ? baseLanguage : 'en';
 const messages = _messages_json__WEBPACK_IMPORTED_MODULE_3__[htmlLang];

webpack.config.js

@@ -69,8 +69,5 @@ module.exports = (env, argv) => {
       'react-intl': 'ReactIntl',
       'tinode-sdk': 'Tinode',
     },
-    experiments: {
-      topLevelAwait: true
-    },
   };
 }