From f2ab6e99e82b9c99b5cc491c0a5acc61fa722c90 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Frank=20Schr=C3=B6der?= <frank.schroeder@northvolt.com>
Date: Thu, 12 Jan 2023 17:31:30 +0100
Subject: [PATCH] client: ignore empty filename for RemoteCertificateFile

---
 config.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/config.go b/config.go
index cd53c324..677f285a 100644
--- a/config.go
+++ b/config.go
@@ -174,6 +174,10 @@ func RemoteCertificate(cert []byte) Option {
 // in PEM or DER encoding.
 func RemoteCertificateFile(filename string) Option {
 	return func(cfg *Config) {
+		if filename == "" {
+			return
+		}
+
 		cert, err := loadCertificate(filename)
 		if err != nil {
 			cfg.setError(err)