From dd06a7075e1e51eaccc891e804a865d02b961664 Mon Sep 17 00:00:00 2001
From: Romain Beaumont <romain.rom1@gmail.com>
Date: Mon, 4 Jan 2016 20:44:28 +0100
Subject: [PATCH] fix small bug that made the latency be NaN sometimes

---
 src/createServer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/createServer.js b/src/createServer.js
index 309c5ed..5b56fdd 100644
--- a/src/createServer.js
+++ b/src/createServer.js
@@ -74,7 +74,7 @@ function createServer(options) {
     }
 
     function onKeepAlive() {
-      client.latency = (new Date()) - sendKeepAliveTime;
+      if(sendKeepAliveTime) client.latency = (new Date()) - sendKeepAliveTime;
       lastKeepAlive = new Date();
     }