fix status code check for url request

client.js

@@ -199,7 +199,7 @@ Tunnel.prototype._init = function(cb) {
                 return setTimeout(get_url, 1000);
             }
 
-            if (res.status !== 200) {
+            if (res.statusCode !== 200) {
                 var err = new Error((body && body.message) || 'localtunnel server returned an error, please try again');
                 return cb(err);
             }