From 58ba4592ec8cd5bb6447b20ae2a54247dd608d06 Mon Sep 17 00:00:00 2001
From: takumadx <hirayama.takuma@ohmydigifab.com>
Date: Tue, 20 Aug 2019 13:28:01 +0900
Subject: [PATCH] tune

---
 lib/peer/peer.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/peer/peer.js b/lib/peer/peer.js
index 51788be..bd674fa 100644
--- a/lib/peer/peer.js
+++ b/lib/peer/peer.js
@@ -1074,7 +1074,9 @@ Peer.prototype.emitError = function(type, err) {
   if (typeof err === 'string') {
     err = new Error(err);
   }
-  err.type = type;
+  if (err) {
+    err.type = type;
+  }
   this.emit('error', err);
 };