Sourcemap for "xxx" points to missing source files, while inject script.src to index.html

[s3xysteak]

Describe the bug

I want to external a lib, and inject the bundle in index.html by transformIndexHtml hook.
When I do that, the app works well but server logged a warn :

Sourcemap for "foo/bar.js" points to missing source files

In the reproduction I use ceisum lib because it provide a iife bundle with sourcemap so I can reproduce this issue.

Reproduction

https://github.com/s3xysteak/vite-reproduction-sourcemap-miss

Steps to reproduce

1. pnpm i
2. pnpm dev
3. Click the link to make it run in brower.

Then you will find the warning throwed by vite server.

System Info

System:
    OS: Windows 11 10.0.22631
    CPU: (20) x64 13th Gen Intel(R) Core(TM) i5-13500HX
    Memory: 5.33 GB / 15.73 GB
  Binaries:
    Node: 20.11.1 - ~\AppData\Local\fnm_multishells\2724_1715876072969\node.EXE
    npm: 10.2.4 - ~\AppData\Local\fnm_multishells\2724_1715876072969\npm.CMD
    pnpm: 9.1.1 - ~\AppData\Local\pnpm\pnpm.CMD
  Browsers:
    Edge: Chromium (123.0.2420.97)
    Internet Explorer: 11.0.22621.3527

Used Package Manager

pnpm

Logs

Click to expand!

  vite:config bundled config file loaded in 33.30ms +0ms
  vite:config using resolved config: {
  vite:config   plugins: [
  vite:config     'vite:optimized-deps',
  vite:config     'vite:watch-package-data',
  vite:config     'vite:pre-alias',
  vite:config     'alias',
  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-helper',
  vite:config     'vite:worker',
  vite:config     'vite:asset',
  vite:config     'test',
  vite:config     'vite:wasm-fallback',
  vite:config     'vite:define',
  vite:config     'vite:css-post',
  vite:config     'vite:worker-import-meta-url',
  vite:config     'vite:asset-import-meta-url',
  vite:config     'vite:dynamic-import-vars',
  vite:config     'vite:import-glob',
  vite:config     'vite:client-inject',
  vite:config     'vite:css-analysis',
  vite:config     'vite:import-analysis'
  vite:config   ],
  vite:config   optimizeDeps: {
  vite:config     holdUntilCrawlEnd: true,
  vite:config     force: undefined,
  vite:config     esbuildOptions: { preserveSymlinks: false }
  vite:config   },
  vite:config   server: {
  vite:config     preTransformRequests: true,
  vite:config     host: undefined,
  vite:config     sourcemapIgnoreList: [Function: isInNodeModules$1],
  vite:config     middlewareMode: false,
  vite:config     fs: {
  vite:config       strict: true,
  vite:config       allow: [Array],
  vite:config       deny: [Array],
  vite:config       cachedChecks: undefined
  vite:config     }
  vite:config   },
  vite:config   build: {
  vite:config     target: [ 'es2020', 'edge88', 'firefox78', 'chrome87', 'safari14' ],
  vite:config     cssTarget: [ 'es2020', 'edge88', 'firefox78', 'chrome87', 'safari14' ],
  vite:config     outDir: 'dist',
  vite:config     assetsDir: 'assets',
  vite:config     assetsInlineLimit: 4096,
  vite:config     cssCodeSplit: true,
  vite:config     sourcemap: false,
  vite:config     rollupOptions: { external: [Array] },
  vite:config     minify: 'esbuild',
  vite:config     terserOptions: {},
  vite:config     write: true,
  vite:config     emptyOutDir: null,
  vite:config     copyPublicDir: true,
  vite:config     manifest: false,
  vite:config     lib: false,
  vite:config     ssr: false,
  vite:config     ssrManifest: false,
  vite:config     ssrEmitAssets: 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     modulePreload: { polyfill: true },
  vite:config     cssMinify: true
  vite:config   },
  vite:config   configFile: 'E:/Code/test/vite-reproduction-sourcemap-miss/vite.config.ts',
  vite:config   configFileDependencies: [ 'E:/Code/test/vite-reproduction-sourcemap-miss/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     optimizeDeps: { force: undefined },
  vite:config     server: { host: undefined }
  vite:config   },
  vite:config   root: 'E:/Code/test/vite-reproduction-sourcemap-miss',
  vite:config   base: '/',
  vite:config   rawBase: '/',
  vite:config   resolve: {
  vite:config     mainFields: [ 'browser', 'module', 'jsnext:main', 'jsnext' ],
  vite:config     conditions: [],
  vite:config     extensions: [
  vite:config       '.mjs',  '.js',
  vite:config       '.mts',  '.ts',
  vite:config       '.jsx',  '.tsx',
  vite:config       '.json'
  vite:config     ],
  vite:config     dedupe: [],
  vite:config     preserveSymlinks: false,
  vite:config     alias: [ [Object], [Object] ]
  vite:config   },
  vite:config   publicDir: 'E:/Code/test/vite-reproduction-sourcemap-miss/public',
  vite:config   cacheDir: 'E:/Code/test/vite-reproduction-sourcemap-miss/node_modules/.vite',
  vite:config   command: 'serve',
  vite:config   mode: 'development',
  vite:config   ssr: {
  vite:config     target: 'node',
  vite:config     optimizeDeps: { noDiscovery: true, esbuildOptions: [Object] }
  vite:config   },
  vite:config   isWorker: false,
  vite:config   mainConfig: null,
  vite:config   bundleChain: [],
  vite:config   isProduction: false,
  vite:config   css: { lightningcss: undefined },
  vite:config   esbuild: { jsxDev: true },
  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   envDir: 'E:/Code/test/vite-reproduction-sourcemap-miss',
  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(1) {
  vite:config     'fnpd_E:/Code/test/vite-reproduction-sourcemap-miss' => {
  vite:config       dir: 'E:/Code/test/vite-reproduction-sourcemap-miss',
  vite:config       data: [Object],
  vite:config       hasSideEffects: [Function: hasSideEffects],
  vite:config       webResolvedImports: {},
  vite:config       nodeResolvedImports: {},
  vite:config       setResolvedCache: [Function: setResolvedCache],
  vite:config       getResolvedCache: [Function: getResolvedCache]
  vite:config     },
  vite:config     set: [Function (anonymous)]
  vite:config   },
  vite:config   createResolver: [Function: createResolver],
  vite:config   worker: { format: 'iife', plugins: '() => plugins', rollupOptions: {} },
  vite:config   appType: 'spa',
  vite:config   experimental: { importGlobRestoreExtension: false, hmrPartialAccept: false },
  vite:config   getSortedPlugins: [Function: getSortedPlugins],
  vite:config   getSortedPluginHooks: [Function: getSortedPluginHooks]
  vite:config } +5ms
  vite:deps Hash is consistent. Skipping. Use --force to override. +0ms

  VITE v5.2.11  ready in 383 ms

  ➜  Local:   http://localhost:5173/
  ➜  Network: use --host to expose
  ➜  press h + enter to show help
  vite:html-fallback Rewriting GET / to /index.html +0ms
  vite:time 25.76ms /index.html +0ms
  vite:resolve 2.76ms /src/main.ts -> E:/Code/test/vite-reproduction-sourcemap-miss/src/main.ts +0ms
  vite:load 2.03ms [fs] /src/main.ts +0ms
  vite:resolve 1.51ms ./style.css -> E:/Code/test/vite-reproduction-sourcemap-miss/src/style.css +16ms
  vite:resolve 1.95ms ./typescript.svg -> E:/Code/test/vite-reproduction-sourcemap-miss/src/typescript.svg +0ms
  vite:resolve 2.49ms ./counter.ts -> E:/Code/test/vite-reproduction-sourcemap-miss/src/counter.ts +1ms
  vite:import-analysis 6.66ms [4 imports rewritten] src/main.ts +0ms
  vite:transform 16.01ms /src/main.ts +0ms
  vite:load 1.89ms [plugin] /src/typescript.svg +18ms
  vite:load 2.21ms [plugin] /vite.svg +1ms
  vite:import-analysis 0.18ms [no imports] src/typescript.svg +2ms
  vite:import-analysis 0.03ms [no imports] /vite.svg +1ms
  vite:transform 1.43ms /src/typescript.svg +3ms
  vite:transform 1.39ms /vite.svg +0ms
  vite:load 4.19ms [fs] /src/counter.ts +2ms
  vite:load 5.24ms [fs] /src/style.css +1ms
  vite:hmr [self-accepts] src/style.css +0ms
  vite:import-analysis 0.70ms [0 imports rewritten] src/style.css +4ms
  vite:transform 1.95ms /src/style.css +4ms
  vite:import-analysis 0.20ms [no imports] src/counter.ts +1ms
  vite:transform 4.39ms /src/counter.ts +1ms
  vite:resolve 0.63ms /node_modules/cesium/Build/CesiumUnminified/Cesium.js -> E:/Code/test/vite-reproduction-sourcemap-miss/node_modules/.pnpm/cesium@1.117.0/node_modules/cesium/Build/CesiumUnminified/Cesium.js?v=1ef2e465 +18ms
  vite:resolve 0.32ms /@vite/client -> E:/Code/test/vite-reproduction-sourcemap-miss/node_modules/.pnpm/vite@5.2.11_@types+node@20.12.12/node_modules/vite/dist/client/client.mjs +2ms
  vite:cache [304] /src/main.ts +0ms
  vite:time 0.19ms /src/main.ts +39ms
  vite:load 1.38ms [fs] /@vite/client +14ms
  vite:resolve 0.24ms @vite/env -> E:/Code/test/vite-reproduction-sourcemap-miss/node_modules/.pnpm/vite@5.2.11_@types+node@20.12.12/node_modules/vite/dist/client/env.mjs +11ms
  vite:import-analysis 1.42ms [1 imports rewritten] node_modules/.pnpm/vite@5.2.11_@types+node@20.12.12/node_modules/vite/dist/client/client.mjs +21ms
  vite:transform 8.00ms /@vite/client +21ms
  vite:time 12.65ms /@vite/client +12ms
  vite:load 2.62ms [fs] /node_modules/.pnpm/vite@5.2.11_@types+node@20.12.12/node_modules/vite/dist/client/env.mjs +12ms
  vite:import-analysis 0.03ms [no imports] node_modules/.pnpm/vite@5.2.11_@types+node@20.12.12/node_modules/vite/dist/client/env.mjs +4ms
  vite:transform 0.56ms /node_modules/.pnpm/vite@5.2.11_@types+node@20.12.12/node_modules/vite/dist/client/env.mjs +4ms
  vite:load 30.56ms [fs] /node_modules/cesium/Build/CesiumUnminified/Cesium.js +16ms
  vite:import-analysis 56.70ms [no imports] node_modules/.pnpm/cesium@1.117.0/node_modules/cesium/Build/CesiumUnminified/Cesium.js?v=1ef2e465 +290ms
  vite:transform 87.15ms /node_modules/cesium/Build/CesiumUnminified/Cesium.js +290ms
Sourcemap for "E:/Code/test/vite-reproduction-sourcemap-miss/node_modules/.pnpm/cesium@1.117.0/node_modules/cesium/Build/CesiumUnminified/Cesium.js" points to missing source files
  vite:time 346.59ms /node_modules/cesium/Build/CesiumUnminified/Cesium.js +331ms
  vite:cache [304] /node_modules/.pnpm/vite@5.2.11_@types+node@20.12.12/node_modules/vite/dist/client/env.mjs +924ms
  vite:time 0.23ms /node_modules/.pnpm/vite@5.2.11_@types+node@20.12.12/node_modules/vite/dist/client/env.mjs +581ms
  vite:cache [304] /src/style.css +1ms
  vite:time 0.26ms /src/style.css +1ms
  vite:cache [304] /src/typescript.svg?import +1ms
  vite:time 0.13ms /src/typescript.svg?import +1ms
  vite:cache [304] /vite.svg?import +2ms
  vite:time 0.13ms /vite.svg?import +2ms
  vite:cache [304] /src/counter.ts +2ms
  vite:time 0.16ms /src/counter.ts +2ms
  vite:time 0.58ms /vite.svg +5ms
  vite:time 0.46ms /src/typescript.svg +1ms

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.

[sapphi-red]

The warning is coming because cesium's sourcemap points to missing source files. You can see which file is missing by vite --debug sourcemap. It's something that needs to be fixed on cesium's side (or if that's not a problem for you, you can ignore it).

[s3xysteak]

@sapphi-red Sorry to bother you but I still think something is wrong. In the reproduction,

I checked xxx/Cesium.js, in the end of the code, there is //# sourceMappingURL=Cesium.js.map.
And I checked xxx/Cesium.js.map too, it actually exists.

That is why I am confusing on it.

And that is the Logs with vite --debug sourcemap :

Click to expand!

Sourcemap for "E:/Code/test/vite-reproduction-sourcemap-miss/node_modules/.pnpm/cesium@1.117.0/node_modules/cesium/Build/CesiumUnminified/Cesium.js" points to missing source files
  vite:sourcemap Missing sources:
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\index.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\version.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\autolinker.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\anchor-tag-builder.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\utils.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\truncate\truncate-smart.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\regex-lib.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\html-tag.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\truncate\truncate-end.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\truncate\truncate-middle.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\parser\parse-matches.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\match\abstract-match.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\parser\uri-utils.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\match\url-match.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\parser\email-utils.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\parser\tld-regex.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\match\email-match.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\parser\hashtag-utils.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\match\mention-match.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\match\hashtag-match.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\match\phone-match.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\parser\mention-utils.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\parser\phone-number-utils.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\htmlParser\parse-html.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\match\index.ts
  vite:sourcemap   E:\Code\test\vite-reproduction-sourcemap-miss\node_modules\.pnpm\cesium@1.117.0\node_modules\cesium\node_modules\autolinker\src\parser\index.ts +0ms

[sapphi-red]

Yes, the sourcemap exists. What doesn't exist is the files that is referenced in the sourcemap. Those files listed after Missing sources: is referenced by the sourcemap, but it doesn't exist. That leads to generating a sourcemap with some information missing.