# Testing Vite proxy configuration with WebSocket support. ```sh bun install bun run dev # Vite ``` In another terminal, run the WebSocket server (listens on 8078): ```sh bun server.js ``` Alternative server with Python: ```sh uv run server.py ``` Then, open your browser and navigate to `http://localhost:5173` and open the developer console to see how it doesn't work. In development console you can directly connect to the WebSocket server using: ```javascript const ws = new WebSocket('ws://localhost:8078') ws.onmessage = console.log ws.send("Testing") ``` This should work, and the server also prints the message on console.