CJS dependencies are not being pre-bundled

Describe the bug

I’ve got an example Vite app here that has an ESM library, gboost-ui, which has CJS dependencies and peerDependencies which are CJS. When I run pnpm dev I get an error in the browser: The requested module '/node_modules/.pnpm/prop-types@15.8.1/node_modules/prop-types/index.js?v=f8148f89' does not provide an export named 'default'. So I try adding prop-types to optimizeDeps.include but then I get: The requested module '/@fs/Users/stickb/Code/scratch/tdmp-edge-mgmt-ui/node_modules/.pnpm/zen-observable@0.8.15/node_modules/zen-observable/index.js?v=2906f0d0' does not provide an export named 'default'. so I add zen-observable to optimizeDeps.includes. But then Uncaught SyntaxError: The requested module '/@fs/Users/stickb/Code/scratch/tdmp-edge-mgmt-ui/node_modules/.pnpm/url@0.11.0/node_modules/url/url.js?v=f14ea013' does not provide an export named 'format' and so forth. I think this is happening for all CJS dependencies gboost-ui imports. Why isn’t vite pre-bundling these dependencies?

Strangely, if I clone gboost-ui and run pnpm add ../../path/to/gboost-ui it works.

I saw the issue: https://github.com/vitejs/vite/issues/3024 where it says:

if it’s not in node_modules it does not get optimized

So I tried install with npm (since PNPM symlinks) but that didn’t work either 😕

Reproduction

https://github.com/bestickley/vite-gboost-ui-error

System Info

System:
    OS: macOS 12.2.1
    CPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
    Memory: 58.18 MB / 16.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 16.13.2 - ~/Library/pnpm/node
    npm: 8.1.2 - ~/Library/pnpm/npm
  Browsers:
    Chrome: 99.0.4844.51
    Firefox: 91.6.0
    Safari: 15.3
  npmPackages:
    @vitejs/plugin-react: ^1.0.7 => 1.2.0 
    vite: ^2.8.0 => 2.8.6

Used Package Manager

pnpm

Logs

vite:config bundled config file loaded in 207.83ms +0ms
  vite:config using resolved config: {
  vite:config   plugins: [
  vite:config     'vite:pre-alias',
  vite:config     'alias',
  vite:config     'vite:react-babel',
  vite:config     'vite:react-refresh',
  vite:config     'vite:react-jsx',
  vite:config     'vite:modulepreload-polyfill',
  vite:config     'vite:resolve',
  vite:config     'vite:html-inline-proxy',
  vite:config     'vite:css',
  vite:config     'vite:esbuild',
  vite:config     'vite:json',
  vite:config     'vite:wasm',
  vite:config     'vite:worker',
  vite:config     'vite:worker-import-meta-url',
  vite:config     'vite:asset',
  vite:config     'vite:define',
  vite:config     'vite:css-post',
  vite:config     'vite:client-inject',
  vite:config     'vite:import-analysis'
  vite:config   ],
  vite:config   server: {
  vite:config     preTransformRequests: true,
  vite:config     fs: { strict: true, allow: [Array], deny: [Array] }
  vite:config   },
  vite:config   resolve: { dedupe: [ 'react', 'react-dom' ], alias: [ [Object], [Object] ] },
  vite:config   optimizeDeps: {
  vite:config     include: [ 'react/jsx-dev-runtime' ],
  vite:config     esbuildOptions: { keepNames: undefined, preserveSymlinks: undefined }
  vite:config   },
  vite:config   configFile: '/Users/stickb/Code/scratch/vite-gboost-ui-error/vite.config.ts',
  vite:config   configFileDependencies: [ 'vite.config.ts' ],
  vite:config   inlineConfig: {
  vite:config     root: undefined,
  vite:config     base: undefined,
  vite:config     mode: undefined,
  vite:config     configFile: undefined,
  vite:config     logLevel: undefined,
  vite:config     clearScreen: undefined,
  vite:config     server: {}
  vite:config   },
  vite:config   root: '/Users/stickb/Code/scratch/vite-gboost-ui-error',
  vite:config   base: '/',
  vite:config   publicDir: '/Users/stickb/Code/scratch/vite-gboost-ui-error/public',
  vite:config   cacheDir: '/Users/stickb/Code/scratch/vite-gboost-ui-error/node_modules/.vite',
  vite:config   command: 'serve',
  vite:config   mode: 'development',
  vite:config   isProduction: false,
  vite:config   build: {
  vite:config     target: [ 'es2019', 'edge88', 'firefox78', 'chrome87', 'safari13.1' ],
  vite:config     polyfillModulePreload: true,
  vite:config     outDir: 'dist',
  vite:config     assetsDir: 'assets',
  vite:config     assetsInlineLimit: 4096,
  vite:config     cssCodeSplit: true,
  vite:config     cssTarget: [ 'es2019', 'edge88', 'firefox78', 'chrome87', 'safari13.1' ],
  vite:config     sourcemap: false,
  vite:config     rollupOptions: {},
  vite:config     minify: 'esbuild',
  vite:config     terserOptions: {},
  vite:config     write: true,
  vite:config     emptyOutDir: null,
  vite:config     manifest: false,
  vite:config     lib: false,
  vite:config     ssr: false,
  vite:config     ssrManifest: false,
  vite:config     reportCompressedSize: true,
  vite:config     chunkSizeWarningLimit: 500,
  vite:config     watch: null,
  vite:config     commonjsOptions: { include: [Array], extensions: [Array] },
  vite:config     dynamicImportVarsOptions: { warnOnError: true, exclude: [Array] }
  vite:config   },
  vite:config   preview: {
  vite:config     port: undefined,
  vite:config     strictPort: undefined,
  vite:config     host: undefined,
  vite:config     https: undefined,
  vite:config     open: undefined,
  vite:config     proxy: undefined,
  vite:config     cors: undefined,
  vite:config     headers: undefined
  vite:config   },
  vite:config   env: { BASE_URL: '/', MODE: 'development', DEV: true, PROD: false },
  vite:config   assetsInclude: [Function: assetsInclude],
  vite:config   logger: {
  vite:config     hasWarned: false,
  vite:config     info: [Function: info],
  vite:config     warn: [Function: warn],
  vite:config     warnOnce: [Function: warnOnce],
  vite:config     error: [Function: error],
  vite:config     clearScreen: [Function: clearScreen],
  vite:config     hasErrorLogged: [Function: hasErrorLogged]
  vite:config   },
  vite:config   packageCache: Map(0) {},
  vite:config   createResolver: [Function: createResolver],
  vite:config   worker: {
  vite:config     format: 'iife',
  vite:config     plugins: [
  vite:config       [Object], [Object],
  vite:config       [Object], [Object],
  vite:config       [Object], [Object],
  vite:config       [Object], [Object],
  vite:config       [Object], [Object],
  vite:config       [Object], [Object],
  vite:config       [Object], [Object],
  vite:config       [Object], [Object]
  vite:config     ],
  vite:config     rollupOptions: {}
  vite:config   }
  vite:config } +6ms
  vite:deps Hash is consistent. Skipping. Use --force to override. +0ms

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.

[bestickley]

@bluwy, thank you so much for your insight. This explains everything. To change gboost-ui’s output to .js from .jsx was trivial. In tsconfig.json: "jsx": "preserve" => "react-jsx" Thanks, again!

[bluwy]

This looks like a similar issue as https://github.com/vitejs/vite/issues/3910. It seems that gboost-ui is exporting raw JSX files, and I’m not sure if that has been historically supported in Vite. The issue is that in the prebundling step, when prebundling gboost-ui, it encounters imports to JSX files, these files are considered “external”, so they are not prebundled and instead point to the raw path inside node_modules instead. So probably the best way forward now is to have gboost-ui export compiled JSX (into .js) files instead, unless plugin-react supports https://github.com/vitejs/vite/pull/6801.

Of course, I could be wrong too as I’m not using React a lot.