From 15d6a9d621376263622beb266f1ef8c564ef9599 Mon Sep 17 00:00:00 2001
From: Naoyuki Kanezawa <naoyuki.kanezawa@gmail.com>
Date: Thu, 23 Jun 2016 01:29:09 +0900
Subject: [PATCH] don't use http2 agent when url is http (#76)

---
 lib/agent.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/agent.js b/lib/agent.js
index bbb8c07..60baa13 100644
--- a/lib/agent.js
+++ b/lib/agent.js
@@ -16,12 +16,16 @@ import { parse } from 'url';
 export default class Agent {
   constructor (url, { debug } = {}) {
     this._url = url;
-    this._host = parse(url).host;
+    const { protocol, host } = parse(url);
+    this._protocol = protocol;
+    this._host = host;
     this._debug = debug;
     this._initAgent();
   }
 
   _initAgent () {
+    if ('https:' !== this._protocol) return;
+
     this._agent = http2.createAgent({
       host: this._host,
       port: 443
@@ -60,6 +64,6 @@ export default class Agent {
 
   close () {
     if (this._debug) console.log('> [debug] closing agent');
-    return this._agent.close();
+    if (this._agent) return this._agent.close();
   }
 }