From 787c86b4b358f2cbc17c937b3fa1a2e157119484 Mon Sep 17 00:00:00 2001
From: roc <roc@imroc.cc>
Date: Sun, 24 Apr 2022 14:18:48 +0800
Subject: [PATCH] avoid concurrent map iteration and map write(fix #111)

---
 client.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/client.go b/client.go
index 85f74235..998c3a87 100644
--- a/client.go
+++ b/client.go
@@ -969,7 +969,7 @@ func (c *Client) do(r *Request) (resp *Response, err error) {
 		if r.Headers == nil {
 			header = make(http.Header)
 		} else {
-			header = r.Headers.Clone()
+			header = r.Headers
 		}
 		contentLength := int64(len(r.body))