From ea87ebfe6d1699af072b9e7cd40faf8f14b0ab93 Mon Sep 17 00:00:00 2001
From: Dmitriy Mozgovoy <robotshara@gmail.com>
Date: Sat, 11 Feb 2023 16:31:03 +0200
Subject: [PATCH] fix(headers): fixed the filtering logic of the clear method;
 (#5542)

---
 lib/core/AxiosHeaders.js       | 8 ++++++--
 test/unit/core/AxiosHeaders.js | 6 +++---
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/lib/core/AxiosHeaders.js b/lib/core/AxiosHeaders.js
index 1cf84b9458..138384caf3 100644
--- a/lib/core/AxiosHeaders.js
+++ b/lib/core/AxiosHeaders.js
@@ -33,11 +33,15 @@ function isValidHeaderName(str) {
   return /^[-_a-zA-Z]+$/.test(str.trim());
 }
 
-function matchHeaderValue(context, value, header, filter) {
+function matchHeaderValue(context, value, header, filter, isHeaderNameFilter) {
   if (utils.isFunction(filter)) {
     return filter.call(this, value, header);
   }
 
+  if (isHeaderNameFilter) {
+    value = header;
+  }
+
   if (!utils.isString(value)) return;
 
   if (utils.isString(filter)) {
@@ -181,7 +185,7 @@ class AxiosHeaders {
 
     while (i--) {
       const key = keys[i];
-      if(!matcher || matchHeaderValue(this, this[key], key, matcher)) {
+      if(!matcher || matchHeaderValue(this, this[key], key, matcher, true)) {
         delete this[key];
         deleted = true;
       }
diff --git a/test/unit/core/AxiosHeaders.js b/test/unit/core/AxiosHeaders.js
index e52efb78c5..23f824ed94 100644
--- a/test/unit/core/AxiosHeaders.js
+++ b/test/unit/core/AxiosHeaders.js
@@ -242,17 +242,17 @@ describe('AxiosHeaders', function () {
 
       headers.clear();
 
-      assert.notDeepStrictEqual(headers, {});
+      assert.deepStrictEqual({...headers.toJSON()}, {});
     });
 
     it('should clear matching headers if a matcher was specified', () => {
       const headers = new AxiosHeaders({foo: 1, 'x-foo': 2, bar: 3});
 
-      assert.notDeepStrictEqual(headers, {foo: 1, 'x-foo': 2, bar: 3});
+      assert.deepStrictEqual({...headers.toJSON()}, {foo: '1', 'x-foo': '2', bar: '3'});
 
       headers.clear(/^x-/);
 
-      assert.notDeepStrictEqual(headers, {foo: 1, bar: 3});
+      assert.deepStrictEqual({...headers.toJSON()}, {foo: '1', bar: '3'});
     });
   });