From c4412e2993342211627ff87aac4cbebdba42d8c1 Mon Sep 17 00:00:00 2001
From: Star Brilliant <coder@poorlab.com>
Date: Thu, 30 Nov 2017 15:53:13 +0800
Subject: [PATCH] Enable Cookie, which might have better CDN cache performance

---
 doh-client/client.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/doh-client/client.go b/doh-client/client.go
index 3ef2e7d..acaf442 100644
--- a/doh-client/client.go
+++ b/doh-client/client.go
@@ -101,6 +101,7 @@ func NewClient(addr, upstream string, bootstraps []string, timeout uint, noECS,
 		DualStack: true,
 		Resolver: bootResolver,
 	}).DialContext
+	// Most CDNs require Cookie support to prevent DDoS attack
 	cookieJar, err := cookiejar.New(nil)
 	if err != nil { return nil, err }
 	c.httpClient = &http.Client {