[SOLVED] Vite Dev mode works but serving the build does not work. n2.BigInt is not a function

Vite Dev mode works but serving the build does not work. n2.BigInt is not a function

So I'm using vite for my project which is a monorepo setup using turborepo. There are no problems while using dev mode or building the project, however when I serve the project I'm getting the error Uncaught (in promise) TypeError: n2.BigInt is not a function. Can someone please help why the dev mode and build mode work differently for vite?

Putting my config below

export default defineConfig({
  plugins: [
    react(),
    viteTsconfigPaths(),
    svgrPlugin(),
    legacy(),
    commonjs(),
    nodePolyfills({ protocolImports: true }),
  ],
  optimizeDeps: {
    esbuildOptions: {
      target: "es2020", // Enable Big integer literals
      define: {
        global: "globalThis",
      },
      supported: {
        bigint: true,
      },
    },
  },
  resolve: {
    alias: {
      assert: "assert",
      buffer: "buffer",
      crypto: "crypto-browserify",
      http: "stream-http",
      https: "https-browserify",
      os: "os-browserify/browser",
      process: "process/browser",
      stream: "stream-browserify",
      util: "util",
      "~@fontsource": "@fontsource",
    },
  },
  server: {
    open: true,
    port: 3000,
  },
  build: {
    minify: false,
    target: "es2020", // Enable Big integer literals
    commonjsOptions: {
      transformMixedEsModules: true, // Enable @walletconnect/web3-provider which has some code in CommonJS
    },

    rollupOptions: {
      // maxParallelFileOps: 2,
      cache: false,
    },
    outDir: "build",
  },
});

I tried changing the vite config with different settings for rollup and esbuildoptions but nothing worked

Solution