cd src/Frontend/Themes/ViteTheme
npm install vite@2.3.8
npm run dev
Browse to: http://localhost:3000/src/Frontend/Themes/ViteTheme/@vite/client.js It should work on Vite 2.3.8.
Now upgrade to Vite 2.4 and test again:
npm install vite@latest
npm run dev
Try to browse to: http://localhost:3000/src/Frontend/Themes/ViteTheme/@vite/client.js and it will fail