Merge pull request #13450 from backstage/blam/fix-esmodule-detection

Use webpack esmodule detection for React Refresh

.changeset/purple-plums-travel.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Fixed a misconfiguration where all modules where treated as ESM by the React Refresh plugin for Webpack.

packages/cli/src/lib/bundler/transforms.ts

@@ -190,7 +190,6 @@ export const transforms = (options: TransformOptions): Transforms => {
   if (isDev) {
     plugins.push(
       new ReactRefreshPlugin({
-        esModule: true,
         overlay: { sockProtocol: 'ws' },
       }),
     );