web/vite.config.ts

import preact from '@preact/preset-vite'
import { defineConfig } from 'vite'

// The build output (web/dist) is served as static files by gradio.Server at "/".
// A relative base keeps asset URLs path-agnostic (works at root or under a Space root_path).
// The dev proxy lets `npm run dev` hit the in-process Python API during development.
export default defineConfig({
  base: './',
  plugins: [preact()],
  server: {
    proxy: {
      '/api': 'http://127.0.0.1:7860',
      '/healthz': 'http://127.0.0.1:7860',
    },
  },
})