WU / DOCSUNIVERSAL MICROFRONTENDS
EN

Serve a production build

Static and SPA modes, routing, caching, CSP and deployed-site checks.

Requires WU CLI 1.2.0 and WU Framework 4.0.0 for application APIs. Check wu --version and the project dependencies.

wu build
wu serve 4100 --mode static

wu serve [port] [--mode spa|static] serves dist/ on 127.0.0.1. The default port is 3000 and the default mode is spa. Invalid or occupied ports and a missing dist/index.html produce a nonzero exit status. Stop the server with Ctrl+C.

Use static for documentation and multipage sites: /guide/ serves dist/guide/index.html, /guide?lang=en redirects while preserving its query and unknown routes return 404. Use spa when the shell owns client routing: unknown navigation receives the root index. Missing assets return 404 in both modes, never shell HTML.

HTML, manifests and stable names use revalidation and no-transform. Only a filename carrying a verified 12–64 character SHA-256 prefix receives one-year immutable caching. GET and HEAD share headers; HEAD sends no body. The server does not negotiate ETag/304. Catalogs remain fetch-readable even when direct navigation returns 404: that filter does not make manifests secret.

Generated CSP calculates hashes from each response HTML. A literal policy remains host-controlled. TLS, compression and public access belong to the hosting service or reverse proxy. Apply _headers, vercel.json or wu-security.conf as your provider requires and check the result with remote doctor.

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