fix startsWith bug

@@ -20,7 +20,7 @@ const limiter = (rule, policy, context) => {
 };
 
 module.exports = (req, res, next) => {
-    let remoteIp = req.get('X-Forwarded-For') || req.connection.remoteAddress;
+    let remoteIp = req.get('X-Forwarded-For');
 
     if (remoteIp.indexOf(',') > 0) {
         let arr = remoteIp.split(',');
@@ -30,7 +30,7 @@ module.exports = (req, res, next) => {
 
     remoteIp = _.trim(remoteIp);
 
-    if (_.startWith(remoteIp, '10.66.')) {
+    if (_.startsWith(remoteIp, '10.66.')) {
         remoteIp = req.get('X-Real-IP');
     }