The app didn't load

The main JavaScript bundle failed to start. This is usually a brief preview-proxy / CDN hiccup, an old app cache after a deploy, or a blocked script. Clear local caches and reload a fresh build.

Clear cache & reload

If you saw Lovable proxy error, wait a few seconds and retry — that is the preview host, not the product. Still broken? DevTools → Network → red /assets/index-*.js or /src/entry.ts.