Added comment for later reference

web/react/utils/client.jsx

@@ -286,7 +286,7 @@ module.exports.getMeSynchronous = function(success, error) {
             if (success) success(data, textStatus, xhr);
         },
         error: function(xhr, status, err) {
-            var ieChecker = window.navigator.userAgent;
+            var ieChecker = window.navigator.userAgent; // This and the condition below is used to check specifically for browsers IE10 & 11 to suppress a 200 'OK' error from appearing on login
             if (xhr.status != 200 || !(ieChecker.indexOf("Trident/7.0") > 0 || ieChecker.indexOf("Trident/6.0") > 0)) {
                 if (error) {
                     e = handleError("getMeSynchronous", xhr, status, err);