Describe the bug

__filename and __dirname are undefined and cause a reference error in modules loaded with ssrLoadModule. They work correctly in the production build.

Reproduction

https://stackblitz.com/edit/vitejs-vite-seqgmn?file=index.js

System Info

System:
    OS: Linux 5.4 Linux Mint 20.3 (Una)
    CPU: (8) x64 Intel(R) Core(TM) i7-3630QM CPU @ 2.40GHz
    Memory: 793.16 MB / 15.52 GB
    Container: Yes
    Shell: 5.0.17 - /bin/bash
  Binaries:
    Node: 16.13.1 - /usr/local/bin/node
    Yarn: 1.22.11 - ~/.npm-global/bin/yarn
    npm: 8.3.0 - ~/.npm-global/bin/npm
  Browsers:
    Chrome: 98.0.4758.80
    Firefox: 97.0
  npmPackages:
    vite: ^2.8.1 => 2.8.1

Used Package Manager

npm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to https://github.com/vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.