From 84fe6654ccc351324f5d9204d170161d0cab2dc9 Mon Sep 17 00:00:00 2001
From: neil <win10@neilpang.com>
Date: Sun, 3 Oct 2021 20:59:55 +0800
Subject: [PATCH] fix for
 https://github.com/acmesh-official/acme.sh/issues/3717

---
 acme.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/acme.sh b/acme.sh
index 84fa1767..a5ac9e47 100755
--- a/acme.sh
+++ b/acme.sh
@@ -4934,7 +4934,9 @@ $_authorizations_map"
 
   echo "$response" >"$CERT_PATH"
   _split_cert_chain "$CERT_PATH" "$CERT_FULLCHAIN_PATH" "$CA_CERT_PATH"
-
+  if [ -z "$_preferred_chain" ]; then
+    _preferred_chain=$(_readcaconf DEFAULT_PREFERRED_CHAIN)
+  fi
   if [ "$_preferred_chain" ] && [ -f "$CERT_FULLCHAIN_PATH" ]; then
     if [ "$DEBUG" ]; then
       _debug "default chain issuers: " "$(_get_chain_issuers "$CERT_FULLCHAIN_PATH")"