Find a way to initialise optimizer without starting a server

[sheremet-va]

Clear and concise description of the problem

Currently, we call server.listen to initialize a web optimizer - unfortunately, this has many side effects (like starting a literal server) that we do not need and might cause a loss in performance.

Suggested solution

Investigate if it's possible to initialize optimizer without starting a Vite server.

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.

[grigor-minasyan]

Just wanted to check what is the priority on this one, we ended up downgrading to 0.34.2 for the same reason, not sure why we need to start the server when testing, it also starts the server on the same port that the actual dev server is using, causing it to break the actual running server

[oldguan]

Just wanted to check what is the priority on this one, we ended up downgrading to 0.34.2 for the same reason, not sure why we need to start the server when testing, it also starts the server on the same port that the actual dev server is using, causing it to break the actual running server

remove "server.strictPort: true"
works for me