From e17ab9cd8f28ff9cce3e2d4f9c1d719c2a69d164 Mon Sep 17 00:00:00 2001
From: James Greenleaf <james@greenle.af>
Date: Wed, 23 Oct 2019 14:44:20 -0400
Subject: [PATCH] Add conditional to timer.unref

---
 src/common/connection.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common/connection.ts b/src/common/connection.ts
index 76662644..51473f1a 100644
--- a/src/common/connection.ts
+++ b/src/common/connection.ts
@@ -456,7 +456,7 @@ class Connection extends EventEmitter {
       this._whenReady(this._send(message)).then(() => {
         const delay = timeout || this._timeout
         timer = setTimeout(() => _reject(new TimeoutError()), delay)
-        timer.unref()
+        if (timer.unref) timer.unref()
       }).catch(_reject)
     })
   }