From 20ae3b2dafa16cdfb7bc72e4810a188baf8d5a3b Mon Sep 17 00:00:00 2001
From: Andrew Nicols <andrew@nicols.co.uk>
Date: Wed, 10 May 2023 20:46:41 +0800
Subject: [PATCH] MDL-78198 file: Stop sending the Accept-Charset header in
 curl

See notes on:
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Accept-Charset

Warning: Do not use this header. Browsers omit this header and servers
should ignore it.

The Accept-Charset request HTTP header was a header that advertised a
client's supported character encodings. It is no longer widely used.

UTF-8 is well-supported and the overwhelmingly preferred choice for
character encoding. To guarantee better privacy through less
configuration-based entropy, all browsers omit the Accept-Charset
header.
---
 lib/filelib.php | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/filelib.php b/lib/filelib.php
index d1b9a5e4b31..d21423e4d23 100644
--- a/lib/filelib.php
+++ b/lib/filelib.php
@@ -3513,7 +3513,6 @@ class curl {
         if (empty($this->header)) {
             $this->setHeader(array(
                 'User-Agent: ' . $useragent,
-                'Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7',
                 'Connection: keep-alive'
                 ));
         } else if (!in_array('User-Agent: ' . $useragent, $this->header)) {