From bf8baa2c216c01e33ec9f42b456e377490c26815 Mon Sep 17 00:00:00 2001
From: lilydjwg <lilydjwg@gmail.com>
Date: Thu, 3 Sep 2020 17:00:04 +0800
Subject: [PATCH] httpclient: fix headers being modified across invocations

---
 nvchecker/httpclient/base.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nvchecker/httpclient/base.py b/nvchecker/httpclient/base.py
index 723c6e3..9876a06 100644
--- a/nvchecker/httpclient/base.py
+++ b/nvchecker/httpclient/base.py
@@ -45,6 +45,7 @@ class BaseSession:
     p = proxy.get()
     ua = user_agent.get()
 
+    headers = headers.copy()
     headers.setdefault('User-Agent', ua)
 
     for i in range(1, t+1):