diff --git a/package-lock.json b/package-lock.json
index a1d07c9..687eb3f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "fakerest",
-  "version": "3.5.0",
+  "version": "4.0.0-beta.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "fakerest",
-      "version": "3.5.0",
+      "version": "4.0.0-beta.0",
       "license": "MIT",
       "dependencies": {
         "lodash": "^4.17.21"
diff --git a/public/test-umd.html b/public/test-umd.html
new file mode 100644
index 0000000..42f7c99
--- /dev/null
+++ b/public/test-umd.html
@@ -0,0 +1,42 @@
+<html>
+    <head>
+        <title>Test</title>
+    </head>
+
+    <script src="https://unpkg.com/msw/lib/iife/index.js"></script>
+    <script src="../dist/fakerest.umd.cjs"></script>
+    <script>
+        const data = {
+            authors: [
+                { id: 0, first_name: 'Leo', last_name: 'Tolstoi' },
+                { id: 1, first_name: 'Jane', last_name: 'Austen' },
+            ],
+            books: [
+                { id: 0, author_id: 0, title: 'Anna Karenina' },
+                { id: 1, author_id: 0, title: 'War and Peace' },
+                { id: 2, author_id: 1, title: 'Pride and Prejudice' },
+                { id: 3, author_id: 1, title: 'Sense and Sensibility' },
+            ],
+            settings: {
+                language: 'english',
+                preferred_format: 'hardback',
+            },
+        };
+        const handler = FakeRest.getMswHandler({
+            baseUrl: 'http://localhost:3000',
+            data,
+        });
+        const worker = MockServiceWorker.setupWorker(handler);
+        worker.start({
+            quiet: true, // Instruct MSW to not log requests in the console
+            onUnhandledRequest: 'bypass', // Instruct MSW to ignore requests we don't handle
+        }).then(() => {
+            console.log('MSW worker started');
+            fetch('http://localhost:3000/authors').then((response) => {
+                return response.json();
+            }).then((data) => {
+                console.log('Received authors:', data);
+            });
+        });
+    </script>
+</html>
diff --git a/vite.config.min.ts b/vite.config.min.ts
index 7a36c0b..ab52308 100644
--- a/vite.config.min.ts
+++ b/vite.config.min.ts
@@ -17,12 +17,13 @@ export default defineConfig({
         rollupOptions: {
             // make sure to externalize deps that shouldn't be bundled
             // into your library
-            external: ['lodash'],
+            external: ['lodash', 'msw'],
             output: {
                 // Provide global variables to use in the UMD build
                 // for externalized deps
                 globals: {
                     lodash: '_',
+                    msw: 'MockServiceWorker',
                 },
             },
         },
diff --git a/vite.config.ts b/vite.config.ts
index 27f1ecc..66bc0ef 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -18,12 +18,13 @@ export default defineConfig({
         rollupOptions: {
             // make sure to externalize deps that shouldn't be bundled
             // into your library
-            external: ['lodash'],
+            external: ['lodash', 'msw'],
             output: {
                 // Provide global variables to use in the UMD build
                 // for externalized deps
                 globals: {
                     lodash: '_',
+                    msw: 'MockServiceWorker',
                 },
             },
         },
