From aa4de3b13ddc5c8b70b7508c6e466e4aa5edd74c Mon Sep 17 00:00:00 2001
From: Jordi Boggiano <j.boggiano@seld.be>
Date: Wed, 13 Oct 2021 20:24:28 +0200
Subject: [PATCH] Fix CurlDownloader requesting gzip encoding even though
 unsupported, fixes #10153

---
 src/Composer/Util/Http/CurlDownloader.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Composer/Util/Http/CurlDownloader.php b/src/Composer/Util/Http/CurlDownloader.php
index c32d5bbe3..a509d341d 100644
--- a/src/Composer/Util/Http/CurlDownloader.php
+++ b/src/Composer/Util/Http/CurlDownloader.php
@@ -195,8 +195,9 @@ class CurlDownloader
         curl_setopt($curlHandle, CURLOPT_TIMEOUT, max((int) ini_get("default_socket_timeout"), 300));
         curl_setopt($curlHandle, CURLOPT_WRITEHEADER, $headerHandle);
         curl_setopt($curlHandle, CURLOPT_FILE, $bodyHandle);
-        curl_setopt($curlHandle, CURLOPT_ENCODING, "gzip");
+        curl_setopt($curlHandle, CURLOPT_ENCODING, ""); // let cURL set the Accept-Encoding header to what it supports
         curl_setopt($curlHandle, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
+
         if (function_exists('curl_share_init')) {
             curl_setopt($curlHandle, CURLOPT_SHARE, $this->shareHandle);
         }