diff --git a/crates/rspack_plugin_javascript/src/dependency/esm/harmony_export_imported_specifier_dependency.rs b/crates/rspack_plugin_javascript/src/dependency/esm/harmony_export_imported_specifier_dependency.rs
index b9b2bfa74ee1..2759456c0ed4 100644
--- a/crates/rspack_plugin_javascript/src/dependency/esm/harmony_export_imported_specifier_dependency.rs
+++ b/crates/rspack_plugin_javascript/src/dependency/esm/harmony_export_imported_specifier_dependency.rs
@@ -468,16 +468,22 @@ impl HarmonyExportImportedSpecifierDependency {
     let mut fragments = vec![];
     let mg = &compilation.module_graph;
     // FIXME:
-    // let connection = mg.connection_by_dependency(&self.id);
-    println!(
-      "self.id {:?} {:?}",
-      &self.id,
-      mg.get_module(&self.id),
-      // connection.unwrap().module_identifier
-    );
+    // let data = mg
+    //   .get_module(&self.id)
+    //   .unwrap()
+    //   .as_normal_module()
+    //   .and_then(|m| Some(m.resource_resolved_data()));
+    // if let Some(data) = data {
+    //   let resource_path = &data.resource_path;
+    //   println!("resource_path {:?}", resource_path)
+    // }
     let imported_module = mg
       .module_identifier_by_dependency_id(&self.id)
-      .expect("should have imported module identifier");
+      .unwrap_or_else(|| {
+        println!("resource_path {:?} {:?}", module.identifier(), &self);
+        panic!();
+      });
+    // .expect("should have imported module identifier");
     let module_identifier = module.identifier();
     let import_var = get_import_var(mg, self.id);
     match mode.ty {
diff --git a/packages/create-rspack/template-react-ts/rspack.config.js b/packages/create-rspack/template-react-ts/rspack.config.js
index dd4ba9b94f8f..18f70679516f 100644
--- a/packages/create-rspack/template-react-ts/rspack.config.js
+++ b/packages/create-rspack/template-react-ts/rspack.config.js
@@ -59,13 +59,13 @@ module.exports = {
 			}
 		]
 	},
-	// optimization: {
-	// 	sideEffects: true,
-	// 	usedExports: true,
-	// 	providedExports: true,
-	// 	mangleExports: true,
-	// 	moduleIds: 'named'
-	// },
+	optimization: {
+		sideEffects: "flag",
+		usedExports: true,
+		providedExports: true,
+		mangleExports: true,
+		moduleIds: "named"
+	},
 	experiments: {
 		rspackFuture: {
 			newTreeshaking: true