From c25461e9c6491ca0096032b22e22624096de8d2c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=A7=D0=B0=D0=B9=D0=BA=D0=BE=D0=B2=D1=81=D0=BA=D0=B8?=
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 <ka.chaikovskiy@prisbank.com>
Date: Thu, 20 Oct 2022 16:27:20 +0300
Subject: [PATCH] fix axios config headers

---
 lib/core/Axios.js | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/lib/core/Axios.js b/lib/core/Axios.js
index 31f8b531dc..f18b154fc9 100644
--- a/lib/core/Axios.js
+++ b/lib/core/Axios.js
@@ -68,19 +68,21 @@ class Axios {
     config.method = (config.method || this.defaults.method || 'get').toLowerCase();
 
     // Flatten headers
-    const defaultHeaders = config.headers && utils.merge(
-      config.headers.common,
-      config.headers[config.method]
-    );
-
-    defaultHeaders && utils.forEach(
-      ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
-      function cleanHeaderConfig(method) {
-        delete config.headers[method];
-      }
-    );
-
-    config.headers = new AxiosHeaders(config.headers, defaultHeaders);
+    if (!(config.headers instanceof AxiosHeaders)) {
+      const defaultHeaders = config.headers && utils.merge(
+          config.headers.common,
+          config.headers[config.method]
+      );
+
+      defaultHeaders && utils.forEach(
+          ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+          function cleanHeaderConfig(method) {
+            delete config.headers[method];
+          }
+      );
+
+      config.headers = new AxiosHeaders(config.headers, defaultHeaders);
+    }
 
     // filter out skipped interceptors
     const requestInterceptorChain = [];