Describe the bug

Dev mode in a react server-rendered application, the initial critical css is not inlined into the html.
Styles kicks in only after the react hydration and the vite runtime loaded.

This results in a very bad flickering, especially in big applications since it takes a few seconds before the vite fetches all the required js and is browser ready.

Expectation

The stylesheet with critical css is either:

• inlined in the html
  or
• is written to the build folder so that its at least possible to inline that css file in the react ssr handler with some custom logic.

Reproduction

https://github.com/chin2km/vite-react-ssr-dev-mode-critical-css-issue

Steps to reproduce

yarn dev

and see the flickering from the server rendered page goes from a no-styles state to when the styles are loaded.

System Info

System:
    OS: macOS 14.1
    CPU: (10) arm64 Apple M1 Pro
    Memory: 1.72 GB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.0.0 - ~/.nodenv/versions/20.0.0/bin/node
    Yarn: 1.22.22 - ~/.nodenv/versions/20.0.0/bin/yarn
    npm: 7.24.2 - ~/Documents/AboutYou/tadarida-frontend-web/node_modules/.bin/npm
    pnpm: 8.15.6 - ~/.nodenv/versions/20.0.0/bin/pnpm
    bun: 0.1.10 - ~/.bun/bin/bun
  Browsers:
    Chrome: 124.0.6367.62
    Safari: 17.1

Used Package Manager

yarn

Logs

No response

Validations

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• The provided reproduction is a minimal reproducible example of the bug.