diff --git a/packages/network/src/fetch.ts b/packages/network/src/fetch.ts
index e8b3e483..1b82d98f 100644
--- a/packages/network/src/fetch.ts
+++ b/packages/network/src/fetch.ts
@@ -4,8 +4,11 @@ import 'cross-fetch/polyfill';
 // Reference: https://developer.mozilla.org/en-US/docs/Web/API/Request/Request
 const defaultFetchOpts: RequestInit = {
   // By default referrer value will be client:origin: above reference link
-  referrerPolicy: 'origin', // Use origin value for referrer policy
   // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy
+  referrerPolicy: 'origin', // Use origin value for referrer policy
+  headers: {
+    'x-hiro-product': 'stacksjs',
+  },
 };
 
 /**
@@ -39,7 +42,7 @@ export const setFetchOptions = (ops: RequestInit): RequestInit => {
 export async function fetchWrapper(input: RequestInfo, init?: RequestInit): Promise<Response> {
   const fetchOpts = {};
   // Use the provided options in request options along with default or user provided values
-  Object.assign(fetchOpts, init, defaultFetchOpts);
+  Object.assign(fetchOpts, defaultFetchOpts, init);
 
   const fetchResult = await fetch(input, fetchOpts);
   return fetchResult;
@@ -81,7 +84,7 @@ export interface ApiKeyMiddlewareOpts {
 /** @internal */
 export function hostMatches(host: string, pattern: string | RegExp) {
   if (typeof pattern === 'string') return pattern === host;
-  return (pattern as RegExp).exec(host);
+  return pattern.exec(host);
 }
 
 /**
diff --git a/packages/network/tests/fetch.test.ts b/packages/network/tests/fetch.test.ts
index 73081ffe..f17d3ad0 100644
--- a/packages/network/tests/fetch.test.ts
+++ b/packages/network/tests/fetch.test.ts
@@ -4,13 +4,21 @@ import { fetchWrapper, getFetchOptions, setFetchOptions } from '../src/fetch';
 test('Verify fetch private options', async () => {
   const defaultOptioins = getFetchOptions();
 
-  expect(defaultOptioins).toEqual({ referrerPolicy: 'origin' });
+  expect(defaultOptioins).toEqual({
+    referrerPolicy: 'origin',
+    headers: {
+      'x-hiro-product': 'stacksjs',
+    },
+  });
 
   // Override default options when fetchPrivate is called internally by other stacks.js libraries like transactions or from server side
   // This is for developers as they cannot directly pass options directly in fetchPrivate
   const modifiedOptions: RequestInit = {
     referrer: 'http://test.com',
     referrerPolicy: 'same-origin',
+    headers: {
+      'x-hiro-product': 'stacksjs',
+    },
   };
 
   // Developers can set fetch options globally one time specifically when fetchPrivate is used internally by stacks.js libraries
diff --git a/packages/network/tests/fetchMiddleware.test.ts b/packages/network/tests/fetchMiddleware.test.ts
index 5e966919..8d7dce46 100644
--- a/packages/network/tests/fetchMiddleware.test.ts
+++ b/packages/network/tests/fetchMiddleware.test.ts
@@ -20,7 +20,7 @@ test('createApiKeyMiddleware adds x-api-key header to correct host request', asy
   const fetchFn = createFetchFn(middleware);
 
   await fetchFn('https://example.com');
-  expect(fetchMock.mock.calls[0][1]?.headers).toBe(undefined);
+  expect(fetchMock.mock.calls[0][1]?.headers).toStrictEqual({ 'x-hiro-product': 'stacksjs' });
 
   await fetchFn('https://api.stacks.co');
   expect((fetchMock.mock.calls[1][1]?.headers as Headers)?.get('x-api-key')).toContain(apiKey);