Empty page after successful Vercel deployment - node.js

Question

What is the problem with my project? I receive an empty page after successful deployment to vercel.
package.json:
{
"name": "currency-converter",
"version": "1.0.0",
"description": "template for react application with typescript",
"main": "index.js",
"homepage": ".",
"license": "MIT",
"scripts": {
"start": "webpack serve --config webpack/webpack.config.js --env env=dev",
"build": "webpack --config webpack/webpack.config.js --env env=prod",
"lint": "eslint \"./src/**/*.{js,jsx,ts,tsx,json}\"",
"lint:fix": "eslint --fix \"./src/**/*.{js,jsx,ts,tsx,json}\"",
"prettier": "prettier \"./src/**/*.{js,jsx,ts,tsx,json,css,scss,md}\"",
"prettier:fix": "prettier --write \"./src/**/*.{js,jsx,ts,tsx,json,css,scss,md}\""
},
"dependencies": {
"babel-loader": "^8.2.5",
"react": "^18.2.0",
"react-dom": "^18.2.0"
},
"devDependencies": {
"#babel/core": "^7.18.5",
"#babel/plugin-transform-runtime": "^7.18.6",
"#babel/preset-env": "^7.18.2",
"#babel/preset-react": "^7.17.12",
"#babel/preset-typescript": "^7.17.12",
"#babel/runtime": "^7.18.6",
"#pmmmwh/react-refresh-webpack-plugin": "^0.5.7",
"#types/estree": "^0.0.52",
"#types/react": "^18.0.14",
"#types/react-dom": "^18.0.5",
"#typescript-eslint/eslint-plugin": "^5.30.0",
"#typescript-eslint/parser": "^5.30.0",
"copy-webpack-plugin": "^11.0.0",
"css-loader": "^6.7.1",
"eslint": "^8.18.0",
"eslint-config-prettier": "^8.5.0",
"eslint-plugin-import": "^2.26.0",
"eslint-plugin-jsx-a11y": "^6.6.0",
"eslint-plugin-prettier": "^4.2.1",
"eslint-plugin-react": "^7.30.1",
"eslint-plugin-react-hooks": "^4.6.0",
"html-webpack-plugin": "^5.5.0",
"husky": "^8.0.1",
"lint-staged": "^13.0.3",
"prettier": "^2.7.1",
"react-refresh": "^0.14.0",
"sass-loader": "^13.0.2",
"style-loader": "^3.3.1",
"typescript": "^4.7.4",
"webpack": "^5.74.0",
"webpack-bundle-analyzer": "^4.5.0",
"webpack-cli": "^4.10.0",
"webpack-dev-server": "^4.9.2",
"webpack-merge": "^5.8.0"
},
"lint-staged": {
"src/**/*.{js,jsx,ts,tsx,json}": [
"eslint --fix"
],
"src/**/*.{js,jsx,ts,tsx,json,css,scss,md}": [
"prettier --write"
]
},
"husky": {
"hooks": {
"pre-commit": "lint-staged"
}
}
}
webpack (common config):
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const CopyPlugin = require('copy-webpack-plugin');
module.exports = {
entry: path.resolve(__dirname, '..', './src/index.tsx'),
resolve: {
extensions: ['.tsx', '.ts', '.js'],
},
module: {
rules: [
{
test: /\.(ts|js)x?$/,
exclude: /node_modules/,
use: [
{
loader: 'babel-loader',
},
],
},
{
test: /\.css$/,
use: ['style-loader', 'css-loader'],
},
{
test: /\.(?:ico|gif|png|jpg|jpeg)$/i,
type: 'asset/resource',
},
{
test: /\.(woff(2)?|eot|ttf|otf|svg|)$/,
type: 'asset/inline',
},
],
},
output: {
path: path.resolve(__dirname, '..', './build'),
filename: 'bundle.js',
},
plugins: [
new HtmlWebpackPlugin({
template: path.resolve(__dirname, '..', './public/index.html'),
}),
new CopyPlugin({
patterns: [{ from: 'src', to: 'dest' }],
}),
],
};
webpack (config):
const { merge } = require('webpack-merge');
const commonConfig = require('./webpack.common.js');
module.exports = ({ env }) => {
const envConfig = require(`./webpack.${env}.js`);
const config = merge(commonConfig, envConfig);
return config;
};
webpack (prod config):
module.exports = {
mode: 'production',
devtool: 'source-map',
};
webpack (dev config):
const ReactRefreshWebpackPlugin = require('#pmmmwh/react-refresh-webpack-plugin');
module.exports = {
mode: 'development',
devtool: 'cheap-module-source-map',
devServer: {
hot: true,
open: true,
},
plugins: [new ReactRefreshWebpackPlugin()],
};
Browser console of deployment:
Warning: DevTools failed to load source map: Could not load content for chrome-extension://gighmmpiobklfepjocnamgkkbiglidom/browser-polyfill.js.map: System error: net::ERR_FILE_NOT_FOUND