waitForRequestsIdle hangs indefinitely when used in a Nuxt project

[philipp-spiess]

Describe the bug

When adding a Vite plugin inside a fresh Nuxt project, waitForRequestIdle on CSS assets will stall indefinitely.

Reproduction

https://github.com/philipp-spiess/vite-waitForRequestIdle-issue

Steps to reproduce

• npm install
• npm run dev
• Go to the local dev server and observe the website stuck in loading state

System Info

System:
    OS: macOS 15.0
    CPU: (10) arm64 Apple M1 Max
    Memory: 9.59 GB / 64.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.16.0 - ~/.local/share/mise/installs/node/20.16.0/bin/node
    npm: 10.8.1 - ~/.local/share/mise/installs/node/20.16.0/bin/npm
    pnpm: 9.6.0 - ~/.local/share/mise/installs/pnpm/9.6.0/bin/pnpm
    bun: 1.1.26 - ~/.local/share/mise/installs/bun/1.1.26/bin/bun
    Watchman: 2024.08.05.00 - /opt/homebrew/bin/watchman
  Browsers:
    Chrome: 128.0.6613.86
    Safari: 18.0
  npmPackages:
    vite: latest => 5.4.2

Used Package Manager

pnpm

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 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.

[patak-dev]

Thanks for the reproduction @philipp-spiess! #17982 should fix this. We can merge it in the 5.x series before moving to the Vite 6 beta.