'Re-optimizing dependencies because vite config has changed’ causes a crash

[johnnydecimal]

Describe the bug

This often happens when I refactor CSS. I’m using Astro.

15:55:27 [vite] Re-optimizing dependencies because vite config has changed
TypeError: res.writeHead is not a function
    at ProxyServer.<anonymous> (file:///Users/john/.nvm/versions/node/v22.11.0/lib/node_modules/netlify-cli/dist/utils/proxy.js:392:13)
    at ProxyServer.emit (/Users/john/.nvm/versions/node/v22.11.0/lib/node_modules/netlify-cli/node_modules/eventemitter3/index.js:204:33)
    at ClientRequest.onOutgoingError (/Users/john/.nvm/versions/node/v22.11.0/lib/node_modules/netlify-cli/node_modules/http-proxy/lib/http-proxy/passes/ws-incoming.js:157:16)
    at ClientRequest.emit (node:events:518:28)
    at ClientRequest.emit (node:domain:489:12)
    at emitErrorEvent (node:_http_client:103:11)
    at Socket.socketErrorListener (node:_http_client:506:5)
    at Socket.emit (node:events:518:28)
    at Socket.emit (node:domain:489:12)
    at emitErrorNT (node:internal/streams/destroy:170:8)

  System:
    OS: macOS 15.3.1
    CPU: (8) arm64 Apple M1
  Binaries:
    Node: 22.11.0 - ~/.nvm/versions/node/v22.11.0/bin/node
    npm: 11.0.0 - ~/.nvm/versions/node/v22.11.0/bin/npm
  Browsers:
    Safari: 18.3
  npmGlobalPackages:
    netlify-cli: 19.0.0

Steps to reproduce

1. Run netlify dev on an Astro project.
2. Significantly change the structure of CSS.
3. 💣

Configuration

[dev]
targetPort = 3011
port = 3012

Environment

System:
OS: macOS 15.3.1
CPU: (8) arm64 Apple M1
Memory: 107.61 MB / 16.00 GB
Shell: 5.9 - /bin/zsh
Binaries:
Node: 22.11.0 - ~/.nvm/versions/node/v22.11.0/bin/node
npm: 11.0.0 - ~/.nvm/versions/node/v22.11.0/bin/npm
pnpm: 9.12.3 - /opt/homebrew/bin/pnpm
npmGlobalPackages:
netlify-cli: 19.0.0