fix(fetcher): do not overwrite config

src/utils/Fetcher.test.ts

@@ -62,5 +62,22 @@ describe('fetch', () => {
         },
       },
     );
+
+    expect(axiosSpy).toHaveBeenCalledWith(
+      'https://some-url.test/',
+      {
+        foo: 'bar',
+      },
+      {
+        headers: {
+          'User-Agent': 'jest',
+          'Forwarded': 'for=127.0.0.1',
+          'Referer': 'https://some-url.test',
+          'X-Forwarded-For': '127.0.0.1',
+          'X-Forwarded-Proto': 'https',
+          'X-Real-IP': '127.0.0.1',
+        },
+      },
+    );
   });
 });

src/utils/Fetcher.ts

@@ -37,13 +37,13 @@ export class Fetcher {
     return {
       ...config,
       headers: {
-        ...config?.headers,
         'User-Agent': this.createUserAgentForIp(ctx.ip),
         'Forwarded': `for=${ctx.ip}`,
         'Referer': `${url.protocol}//${url.host}`,
         'X-Forwarded-For': ctx.ip,
         'X-Forwarded-Proto': url.protocol.slice(0, -1),
         'X-Real-IP': ctx.ip,
+        ...config?.headers,
       },
     };
   };