From b7e645b758253f5fc56961f573985394cc725959 Mon Sep 17 00:00:00 2001
From: Takayuki 'January June' Suwa <jjsuwa_sys3175@yahoo.co.jp>
Date: Thu, 6 Apr 2023 11:34:48 +0900
Subject: [PATCH] ESP8266WebServer: Explicitly flush after all responses have
 been indicated to be sent

This patch reduces the HTTP connection instability
(for example, early-closing of server responses).
---
 libraries/ESP8266WebServer/src/ESP8266WebServer-impl.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/ESP8266WebServer/src/ESP8266WebServer-impl.h b/libraries/ESP8266WebServer/src/ESP8266WebServer-impl.h
index eca341aee5..feaad051ea 100644
--- a/libraries/ESP8266WebServer/src/ESP8266WebServer-impl.h
+++ b/libraries/ESP8266WebServer/src/ESP8266WebServer-impl.h
@@ -743,6 +743,7 @@ void ESP8266WebServerTemplate<ServerType>::_finalizeResponse() {
   if (_chunked) {
     sendContent(emptyString);
   }
+  _currentClient.flush();
 }
 
 template <typename ServerType>