diff --git a/.cspell.json b/.cspell.json
index 1352c7ac5..a4b3b91e9 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -28,7 +28,8 @@
"specialattribute",
"dircompare",
"wagoid",
- "autocrlf"
+ "autocrlf",
+ "Rspack"
],
"ignorePaths": [
"CHANGELOG.md",
diff --git a/index.js b/index.js
index 28fc0ede4..34df47f5e 100644
--- a/index.js
+++ b/index.js
@@ -640,11 +640,17 @@ class HtmlWebpackPlugin {
delete globalClone.eval;
delete globalClone.Function;
// Not using `...global` as it throws when localStorage is not explicitly enabled in Node 25+
+ // Provide a CommonJS-style `module`/`exports` pair so templates compiled as CommonJS
+ // (e.g. Rspack's child compilation output, which wraps the result in `module.exports = ...`)
+ // can assign to them instead of failing with `module is not defined`.
+ const sandboxModule = { exports: {} };
const vmContext = vm.createContext(
Object.assign(globalClone, {
HTML_WEBPACK_PLUGIN: true,
// Copying nonstandard globals like `require` explicitly as they may be absent from `global`
require: require,
+ module: sandboxModule,
+ exports: sandboxModule.exports,
htmlWebpackPluginPublicPath: publicPath,
__filename: templateWithoutLoaders,
__dirname: path.dirname(templateWithoutLoaders),
diff --git a/spec/basic.spec.js b/spec/basic.spec.js
index 648c7944f..b9952df28 100644
--- a/spec/basic.spec.js
+++ b/spec/basic.spec.js
@@ -3853,4 +3853,16 @@ describe("HtmlWebpackPlugin", () => {
done,
);
});
+
+ describe("evaluateCompilationResult", () => {
+ it("evaluates templates wrapped in a CommonJS `module.exports = ...` expression", () => {
+ const plugin = new HtmlWebpackPlugin();
+ const source = 'module.exports = "ok";';
+ return plugin
+ .evaluateCompilationResult(source, "", "template.js")
+ .then((result) => {
+ expect(result).toBe("ok");
+ });
+ });
+ });
});