Only apply CDN fix to webpack in prod (#7461)

webpack.config.js

@@ -28,11 +28,11 @@ module.exports = async function (env, argv) {
   ]
   if (env.mode === 'development') {
     config.plugins.push(new ReactRefreshWebpackPlugin())
+  } else {
+    // Support static CDN for chunks
+    config.output.publicPath = 'auto'
   }
 
-  // Support static CDN for chunks
-  config.output.publicPath = 'auto'
-
   if (GENERATE_STATS || OPEN_ANALYZER) {
     config.plugins.push(
       new BundleAnalyzerPlugin({