From 08350ec0efe84eabbb3e950fcdce6d470fe6c555 Mon Sep 17 00:00:00 2001
From: WK <wkchee@gmail.com>
Date: Sun, 30 Aug 2020 14:52:20 +0800
Subject: [PATCH] Update subchannel.ts

---
 packages/grpc-js/src/subchannel.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/grpc-js/src/subchannel.ts b/packages/grpc-js/src/subchannel.ts
index 736562a6..87805246 100644
--- a/packages/grpc-js/src/subchannel.ts
+++ b/packages/grpc-js/src/subchannel.ts
@@ -467,11 +467,13 @@ export class Subchannel {
            * if a connection is successfully established through the proxy.
            * If the proxy is not used, these connectionOptions are discarded
            * anyway */
-          connectionOptions.servername = getDefaultAuthority(
+          const targetPath = getDefaultAuthority(
             parseUri(this.options['grpc.http_connect_target'] as string) ?? {
               path: 'localhost',
             }
           );
+          const hostPort = splitHostPort(targetPath);
+          connectionOptions.servername = (hostPort !== null) ? hostPort.host : targetPath;
         }
       }
     }