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Fix require("prismjs") in webpack, Rspack, esbuild and Parcel bundles #4172

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Merged
DmitrySharabin merged 1 commit into from
Oct 15, 2026
Merged

Fix require("prismjs") in webpack, Rspack, esbuild and Parcel bundles #4172

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22 changes: 21 additions & 1 deletion scripts/build.js
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Original file line number Diff line number Diff line change
Expand Up @@ -323,6 +323,21 @@ const cjsExportPlugin = {
},
};

/**
* Compiles `import.meta.url` to `undefined` in the CJS build.
* Rollup's CJS output for it calls `require('u' + 'rl')` (Node's `url` module),
* which webpack, Rspack, esbuild and Parcel cannot resolve when they bundle for the browser.
* Code that reads `import.meta.url` must handle `undefined`, as it must in an esbuild IIFE bundle.
*
* @type {Plugin}
*/
const cjsImportMetaPlugin = {
name: 'cjs-import-meta',
resolveImportMeta (property) {
return property === 'url' ? 'undefined' : null;
},
};

/**
* @param {MagicString} s
* @returns {{ code: string; map: SourceMapInput }}
Expand Down Expand Up @@ -441,7 +456,12 @@ async function buildJS () {
cjs: {
rollupOptions: {
...defaultRollupOptions,
plugins: [...defaultRollupOptions.plugins, commonjs(), cjsExportPlugin],
plugins: [
...defaultRollupOptions.plugins,
commonjs(),
cjsExportPlugin,
cjsImportMetaPlugin,
],
},
outputOptions: {
...defaultOutputOptions,
Expand Down
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