CodedError: [DF0020] when using devtools

[tbontb-iaq]

Describe the bug

Create a new vue project with pnpm create vue, add @vitejs/devtools, and run dev server with pnpm run dev, open browser and auth, get this errors in console:

[DF0020] RPC function "devtoolskit:internal:messages:list" declares `jsonSerializable: true` but the value at "[0]" is a undefined.
├▶ hint: Either drop `jsonSerializable: true` (falls back to structured-clone) or change the value to a JSON-safe shape.
╰▶ see: https://devfra.me/errors/df0020

Uncaught (in promise) CodedError: [DF0020] RPC function "devtoolskit:internal:messages:list" declares `jsonSerializable: true` but the value at "[0]" is a undefined.

Reproduction

https://github.com/tbontb-iaq/vite-devtools-bug

System Info

System:
    OS: Linux 7.0 cpe:/o:nixos:nixos:25.11 25.11 (Xantusia)
    CPU: (16) x64 AMD Ryzen 7 8845H w/ Radeon 780M Graphics
    Memory: 12.00 GB / 27.15 GB
    Container: Yes
    Shell: 5.9 - /run/current-system/sw/bin/zsh
  Binaries:
    Node: 24.15.0 - /home/jin/.vite-plus/js_runtime/node/24.15.0/bin/node
    Yarn: 1.22.22 - /home/jin/.vite-plus/js_runtime/node/24.15.0/bin/yarn
    npm: 11.13.0 - /home/jin/.vite-plus/js_runtime/node/24.15.0/bin/npm
    pnpm: 10.33.0 - /home/jin/.vite-plus/js_runtime/node/24.15.0/bin/pnpm
    Deno: 2.6.10 - /etc/profiles/per-user/jin/bin/deno
  Browsers:
    Firefox: 150.0.1
    Firefox Developer Edition: 150.0.1

Used Package Manager

pnpm

Validations

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• Read the Contributing Guide.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
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• The provided reproduction is a minimal reproducible of the bug.

[tbontb-iaq]

Possibly a duplicate of #325.