#16135 introduced development server bug

[ZerdoX-x]

Describe the bug

vite dev boots up the server, but it doesn't respond to several file requests, causing the page to infinitely load

Affected vite plugin (in my case): @inlang/paraglide-js-adapter-sveltekit

@knd775 probably has other affected plugin (as paraglide tool it not very popular), but we don't know which one yet.

I can confirm that #16135 introduced a bug. I have built vite locally and all commits after 5.2.0-beta.0 and before #15135 work fine.

More info: #16135 (comment) 1220740873273475162 (discord thread)

UPD0: I have tried to reproduce the issue without sveltekit, no luck.
UPD1: Sveltekit issue sveltejs/kit#12020

Reproduction

https://git.sr.ht/~zerdox/paraglide-js-adapter-sveltekit_incompatibility_vite-5.2.0-beta.1

Steps to reproduce

1. pnpm i
2. pnpm run dev or pnpm vite dev

Probably could be reproduced with other package managers too.

System Info

System:
    OS: Linux 6.6 Gentoo Linux
    CPU: (8) arm64 unknown
    Memory: 6.10 GB / 15.27 GB
    Container: Yes
    Shell: 5.2.26 - /bin/bash
  Binaries:
    Node: 20.11.0 - /run/user/1000/fnm_multishells/9198_1711199923378/bin/node
    Yarn: 1.22.19 - /usr/bin/yarn
    npm: 10.2.4 - /run/user/1000/fnm_multishells/9198_1711199923378/bin/npm
    pnpm: 8.15.4 - ~/.local/share/pnpm/pnpm
    bun: 1.0.30 - ~/.local/share/bun/bin/bun
  Browsers:
    Chromium: 116.0.5845.187
  npmPackages:
    vite: 5.2.4 => 5.2.4

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.

[knd775]

I won't be back at a computer for a while to gather more info, but I am not using paraglide.

There's also an issue on the sveltekit repo for this sveltejs/kit#12020

[fredguest]

Came here to post the same bug, thanks for detailing the issue.

[arxpoetica]

I have a repro of the bug, pre-and-post v5.1.6 Vite:

https://github.com/arxpoetica/inlang-sveltekit-vite-bug

I tried to reproduce this on StackBlitz for easier debugging, but that was creating issues on its own.

[patak-dev]

Thanks for creating the issue, and thanks for the repro @arxpoetica 🙏🏼
This should be fixed by #16246

I'll run ecosystem-ci on it, and let you try it out. I'll merge it and do a release tomorrow.

[arxpoetica]

Can confirm this fixed it, thanks!