vite.config.js

import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'

// https://vitejs.dev/config/
export default defineConfig(({ command, mode, ssrBuild }) => {

  if (command === 'serve') {
    return {
      // Dev config
      plugins: [react()],
      server: {
        host: "0.0.0.0",
        port: 9000,
        headers: {
          "Cross-Origin-Opener-Policy": "same-origin",
          "Cross-Origin-Embedder-Policy": "require-corp"
        }
      }
    }
  } else {
    // command === build
    return {
      // prod config
      plugins: [react()],
      server: {
        host: "0.0.0.0",
        port: 80,
        headers: {
          "Cross-Origin-Opener-Policy": "same-origin",
          "Cross-Origin-Embedder-Policy": "require-corp"
        }
      }
    }
  }
})