diff --git a/packages/angular/build/src/tools/vite/middlewares/html-fallback-middleware.ts b/packages/angular/build/src/tools/vite/middlewares/html-fallback-middleware.ts
index cd52b8a7904f..210993b8280a 100644
--- a/packages/angular/build/src/tools/vite/middlewares/html-fallback-middleware.ts
+++ b/packages/angular/build/src/tools/vite/middlewares/html-fallback-middleware.ts
@@ -7,6 +7,7 @@
  */
 
 import type { ServerResponse } from 'node:http';
+import { basename } from 'node:path/posix';
 import type { Connect } from 'vite';
 import { lookupMimeTypeFromRequest } from '../utils';
 
@@ -27,6 +28,15 @@ export function angularHtmlFallbackMiddleware(
   }
 
   if (req.url) {
+    // No fallback for dotfile requests (e.g., .env, .npmrc)
+    const pathname = req.url.split('?')[0];
+    const lastSegment = basename(pathname);
+    if (lastSegment.startsWith('.')) {
+      next();
+
+      return;
+    }
+
     const mimeType = lookupMimeTypeFromRequest(req.url);
     if (
       (mimeType === 'text/html' || mimeType === 'application/xhtml+xml') &&