client/src/index.js

import React from "react";
import ReactDOM from "react-dom/client";
import "./index.css";
import App from "./App";
import reportWebVitals from "./reportWebVitals";
import { Provider } from "react-redux";
import appStore from "./store/appStore";

import * as process from "process";

window.global = window;
window.process = process;
window.Buffer = [];

const root = ReactDOM.createRoot(document.getElementById("root"));
root.render(
  // <React.StrictMode>
  <Provider store={appStore}>
    <App />
  </Provider>
  // </React.StrictMode>
);

// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();