Merge pull request #1987 from mattermost/PLT-7-fix

PLT-7 fixing loc on safari

web/templates/head.html

@@ -62,14 +62,11 @@
     <style id="antiClickjack">body{display:none !important;}</style>
 
     <script>
-        // if ('ReactIntl' in window && 'ReactIntlLocaleData' in window) {
-        //     Object.keys(ReactIntlLocaleData).forEach((lang) => {
-        //         ReactIntl.addLocaleData(ReactIntlLocaleData[lang]);
-        //     });
-        // }
-
-        ReactIntl.addLocaleData(ReactIntlLocaleData.en);
-        ReactIntl.addLocaleData(ReactIntlLocaleData.es);
+        if ('ReactIntl' in window && 'ReactIntlLocaleData' in window) {
+            Object.keys(ReactIntlLocaleData).forEach(function(lang) {
+                ReactIntl.addLocaleData(ReactIntlLocaleData[lang]);
+            });
+        }
 
         window.mm_config = {{ .ClientCfg }};
         window.mm_license = {{ .ClientLicense }};