start-core/deployment

Install @cloudflare/vite-plugin and wrangler, add the cloudflare plugin with viteEnvironment ssr to vite.config.ts, and set main to @tanstack/react-start/server-entry in wrangler.jsonc. Include the nodejs_compat compatibility flag, then deploy with wrangler login and pnpm run deploy.

Set ssr: false on the route definition to run loaders and render the component only on the client. Use ssr: "data-only" to run loaders on the server while rendering the component on the client, or pass a function to decide SSR at runtime based on params.

Bun deployment works only with React 19 by setting the nitro preset to bun in vite.config.ts. For React 18 projects, use the standard Node.js deployment target instead.

Node.js APIs fail because the nodejs_compat compatibility flag is missing from wrangler.jsonc. Add "compatibility_flags": ["nodejs_compat"] alongside a valid compatibility_date to enable Node.js API support at runtime.

No, child routes inherit the parent SSR configuration and can only become more restrictive. A parent with ssr: false cannot be overridden to ssr: true by a child, but a parent with data-only allows a child to set ssr: false.

Create a server route at src/routes/sitemap[.]xml.ts with a GET handler that fetches your content and returns an XML urlset string. Set the Content-Type header to application/xml on the Response.