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`/docs/middleware/examples/authentication` does not exist. Similar pages:

- [Testing & troubleshooting microfrontends](/docs/microfrontends/troubleshooting.md): Testing The @vercel/microfrontends package includes test utilities to help avoid common misconfigurations. validateMiddlewareConfig The
- [Nuxt server middleware on Vercel](/docs/frameworks/full-stack/nuxt.md): In Nuxt, modules defined in /server/middleware will get deployed as server middleware. Server middleware should not have a return statement or send a
- [Routing Middleware API](/docs/routing-middleware/api.md): l/functions'; export default function middleware(request) { // Clone the request headers const requestHeaders = new Headers(request.headers); // Set
- [Middleware reference](/docs/routing-middleware/getting-started.md): }; The matcher array defines which paths trigger your Routing Middleware The regex excludes static files (images, CSS, etc.) for better performance
- [Middleware](/docs/frameworks/frontend/astro.md): Middleware is a function that execute before a request is processed on a site, enabling you to modify the response. Because it runs before the cache,

All pages: [/llms.txt](/llms.txt)
