sitemap not being served from nitro build

Which project does this relate to?

Start

Describe the bug

When generating a sitemap with nitro, the production server throws a 404 on /sitemap.xml.

Your Example Website or App

.

Steps to Reproduce the Bug or Issue

vite.config.js

nitro({ preset: 'node-server' }),
tanstackStart({
    prerender: {
      enabled: true,
      crawlLinks: false,
    },
    sitemap: {
      enabled: true,
      host: 'https://example.com',
    },

Expected behavior

npm run start serves the built application and /sitemap.xml works

Screenshots or Videos

The server.mjs has this list of assets that is missing to include sitemap.xml:

const assets = {
  "/favicon.png": {
    "type": "image/png",
    "etag": '"58d2-yz8RygUU2g7H6U101cbusIN4uDA"',
    "mtime": "2026-02-02T08:11:51.383Z",
    "size": 22738,
    "path": "../public/favicon.png"
  },
  ...

Platform

• Router / Start Version: [e.g. 1.121.0]
• OS: [e.g. macOS, Windows, Linux]
• Browser: [e.g. Chrome, Safari, Firefox]
• Browser Version: [e.g. 91.1]
• Bundler: [e.g. vite]
• Bundler Version: [e.g. 7.0.0]

Additional context

No response

Start with vite.config.js and the generated server.mjs, then run npm run start and request /sitemap.xml using the shown Nitro node-server and prerender configuration. Compare the generated asset list with the expected sitemap output; done means the production server serves /sitemap.xml without a 404.