From b9cd3944b7fb07dbd9540f4b3a790dc8cec1d21a Mon Sep 17 00:00:00 2001
From: Przemyslaw Motacki <przemyslaw.motacki@snowflake.com>
Date: Tue, 12 Sep 2023 13:56:39 +0200
Subject: [PATCH] fix(headers): content-encoding header accepts
 case-insensitive values (#5890)

---
 lib/adapters/http.js       | 2 +-
 test/unit/adapters/http.js | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/adapters/http.js b/lib/adapters/http.js
index 888b78dfdf..201252ff85 100755
--- a/lib/adapters/http.js
+++ b/lib/adapters/http.js
@@ -471,7 +471,7 @@ export default isHttpAdapterSupported && function httpAdapter(config) {
           delete res.headers['content-encoding'];
         }
 
-        switch (res.headers['content-encoding']) {
+        switch ((res.headers['content-encoding'] || '').toLowerCase()) {
         /*eslint default-case:0*/
         case 'gzip':
         case 'x-gzip':
diff --git a/test/unit/adapters/http.js b/test/unit/adapters/http.js
index a588ab8fbe..6e07c7739b 100644
--- a/test/unit/adapters/http.js
+++ b/test/unit/adapters/http.js
@@ -517,6 +517,7 @@ describe('supports http with nodejs', function () {
 
       for (const [typeName, zipped] of Object.entries({
         gzip: gzip(responseBody),
+        GZIP: gzip(responseBody),
         compress: gzip(responseBody),
         deflate: deflate(responseBody),
         'deflate-raw': deflateRaw(responseBody),