log error for session request if there

And only try to update the session if a body is present

src/init.js

@@ -37,11 +37,15 @@ var translations = require('../locales/translations.json');
             host: '',
             uri: '/session/'
         }, function (err, body) {
+            if (err) return;
+
+            if (typeof body !== 'undefined') {
                 if (body.banned) {
                     return window.location = body.redirectUrl;
                 } else {
                     window.updateSession(body);
                 }
+            }
         });
     };