From 85669dbfaeddf175311eb010c04cd772e2e9e0f9 Mon Sep 17 00:00:00 2001
From: Ognjen Marinkovic <pingvincar@gmail.com>
Date: Thu, 13 Jul 2023 18:46:18 +0200
Subject: [PATCH] Replaced Trailing Spaces in Chunk Size with Leading Zeros

---
 src/WebResponses.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/WebResponses.cpp b/src/WebResponses.cpp
index a22e991aa..845951db6 100644
--- a/src/WebResponses.cpp
+++ b/src/WebResponses.cpp
@@ -317,8 +317,7 @@ size_t AsyncAbstractResponse::_ack(AsyncWebServerRequest *request, size_t len, u
           free(buf);
           return 0;
       }
-      outLen = sprintf((char*)buf+headLen, "%x", readLen) + headLen;
-      while(outLen < headLen + 4) buf[outLen++] = ' ';
+      outLen = sprintf((char*)buf+headLen, "%04x", readLen) + headLen;
       buf[outLen++] = '\r';
       buf[outLen++] = '\n';
       outLen += readLen;