Test out now example

> https://github.com/zeit/next.js/tree/canary/examples/with-cookie-auth

The only difference would be the `3001` references for ports, but it should work.

Open the linked Next.js with-cookie-auth example and inspect its port references. Run it against polydev using port 3001 where applicable, then verify whether the example works as expected and record the result or any required changes.

索引モデルが issue の本文から書いたものです。