What is minimalMode in next-server?

[genetschneider]

Usage of minimalMode can be seen throughout the codebase. One of the key features (side-effects) of this flag seems to be the fact that next-server will throw exceptions instead of sending "Internal Server Error" to the client. One of the benefits of this is to catch errors in case of custom server and introduce proper logging instead of relying on console.error.

What does this flag do and is it safe to use?

[ijjk]

Minimal mode is an experimental config being tested in fully featured Next.js environments like Vercel that have an edge network to handle specific parts of requests that next-server would normally handle. I would not recommend using this config at this point as it is undocumented and can change at any time.