Reformatting does not work on .mdx files

[Signum]

Summary

Prettier manages to reformat all kinds of files. ".mdx" files however are not formatted.

Github Repository to Reproduce Issue

https://github.com/Signum/prettier-mdx-debug

Steps To Reproduce:

1. Have the "prettier" extension installed in vscode
2. Open the index.mdx file in vscode
3. Press Ctrl+Shift+P
4. Choose "Format Document"

Expected result

The frontmatter/YAML part should be rewrapped to 120 columns:

hero:
  tagline:
    ISPmail is a free but extensive do-it-yourself guide to help you build a fully-functional mail server from 100%
    open-source components. It is based on Debian GNU/Linux. Light enough for your friends and family. Or powerful
    enough for professional use.

Actual result

The file is not reformatted.

hero:
  tagline:
    ISPmail is a free but extensive do-it-yourself guide to help you build a fully-functional mail server from 100% open-source components. It is based on Debian GNU/Linux. Light enough for your friends and family. Or powerful enough for professional use.

Additional information

VS Code Version: 1.94.2

Prettier Extension Version: v11.0.0

OS and version: Linux Mint 21.3

Hint: When installing prettier with "pnpm install prettier" and running "npx prettier index.mdx" the file gets reformatted properly.

Prettier Log Output

["DEBUG" - 00:00:17] Using bundled version of prettier.

[Signum]

My list of installed extensions (in case the "mdx" extension could interfere for example):

• adrientoub.base64utils
• aki77.rails-db-schema
• alefragnani.bookmarks
• alefragnani.project-manager
• aliariff.vscode-erb-beautify
• anbuselvanrocky.bootstrap5-vscode
• astro-build.astro-vscode
• bierner.markdown-mermaid
• bpruitt-goddard.mermaid-markdown-syntax-highlighting
• bradlc.vscode-tailwindcss
• bung87.rails
• bung87.vscode-gemfile
• castwide.solargraph
• chrislajoie.vscode-modelines
• christian-kohler.path-intellisense
• cschlosser.doxdocgen
• eamodio.gitlens
• esbenp.prettier-vscode
• etsi0.class-collapse
• github.github-vscode-theme
• golang.go
• hridoy.rails-snippets
• jeff-hykin.better-cpp-syntax
• jumpinjackie.vscode-map-preview
• kaiwood.endwise
• keno.uikit-3-snippets
• koichisasada.vscode-rdbg
• lextudio.restructuredtext
• makicamel.rails-routes-navigator
• meezilla.json
• moalamri.inline-fold
• ms-azuretools.vscode-docker
• ms-kubernetes-tools.vscode-kubernetes-tools
• ms-python.debugpy
• ms-python.isort
• ms-python.python
• ms-python.vscode-pylance
• ms-toolsai.jupyter
• ms-toolsai.jupyter-keymap
• ms-toolsai.jupyter-renderers
• ms-toolsai.vscode-jupyter-cell-tags
• ms-toolsai.vscode-jupyter-slideshow
• ms-vscode-remote.remote-containers
• ms-vscode-remote.remote-ssh
• ms-vscode-remote.remote-ssh-edit
• ms-vscode-remote.remote-wsl
• ms-vscode.cmake-tools
• ms-vscode.cpptools
• ms-vscode.cpptools-extension-pack
• ms-vscode.cpptools-themes
• ms-vscode.remote-explorer
• ms-vscode.vscode-serial-monitor
• mtayllan.ruby-run-tests
• mushan.vscode-paste-image
• ninoseki.vscode-mogami
• orepor.color-tabs-vscode-ext
• pkief.material-icon-theme
• platformio.platformio-ide
• rangav.vscode-thunder-client
• redhat.vscode-commons
• redhat.vscode-yaml
• reliutg.bulma-css-class-completion
• samuelcolvin.jinjahtml
• shanehofstetter.rails-open-partial
• shopify.ruby-lsp
• sianglim.slim
• sirtori.indenticator
• svelte.svelte-vscode
• twxs.cmake
• unifiedjs.vscode-mdx
• wangxinhai-ref-chunsen.flutter-code-select
• yzhang.markdown-all-in-one

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