From ee5f045b897e6545103a002bc5bafca8a02737ba Mon Sep 17 00:00:00 2001
From: silenceper <silenceper@gmail.com>
Date: Thu, 24 Jul 2025 09:59:13 +0800
Subject: [PATCH] fix panic (#844)

---
 util/http.go | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/util/http.go b/util/http.go
index 4cdbb9f..3a16d87 100644
--- a/util/http.go
+++ b/util/http.go
@@ -291,7 +291,14 @@ func httpWithTLS(rootCa, key string) (*http.Client, error) {
 	config := &tls.Config{
 		Certificates: []tls.Certificate{cert},
 	}
-	trans := (DefaultHTTPClient.Transport.(*http.Transport)).Clone()
+
+	var baseTransport http.RoundTripper
+	if DefaultHTTPClient.Transport != nil {
+		baseTransport = DefaultHTTPClient.Transport
+	} else {
+		baseTransport = http.DefaultTransport
+	}
+	trans := baseTransport.(*http.Transport).Clone()
 	trans.TLSClientConfig = config
 	trans.DisableCompression = true
 	client = &http.Client{Transport: trans}