Lovable Live Preview Not Reflecting Code Changes
When you make changes in Lovable's editor, the live preview doesn't update. You modify text, add components, or change styles, but the preview still shows the old version. You have to manually refresh or sometimes even restart the preview to see changes.
The live preview is one of Lovable's key features — seeing your changes instantly is essential for an iterative design workflow. When it breaks, development becomes painfully slow as you're constantly refreshing and waiting.
The issue might be intermittent (works sometimes, not others), specific to certain file types, or happen consistently after making certain kinds of changes.
Error Messages You Might See
Common Causes
- Browser cache serving stale content — The browser aggressively caches JavaScript and CSS files, ignoring updates
- Hot module replacement (HMR) disconnected — The WebSocket connection for live reloading has been lost
- Build error preventing update — A syntax error in your code prevents the preview from rebuilding
- Service worker caching — If your app has a service worker (PWA), it may serve cached content
How to Fix It
- Hard refresh the preview — Use Ctrl+Shift+R (or Cmd+Shift+R on Mac) to bypass the browser cache
- Check for build errors — Look in the Lovable console/terminal for any compilation errors that would prevent updates
- Clear browser cache — Open DevTools → Application → Storage → Clear site data
- Check WebSocket connection — In DevTools Network tab, look for the WebSocket connection (ws://) and verify it's still active
- Disable service worker — In DevTools → Application → Service Workers, click 'Unregister' to stop service worker caching
Real developers can help you.
David Olverson
Solo dev shipping production apps with AI-assisted development. I specialize in rescuing broken Lovable/Bolt/Cursor builds and taking them to production. 10+ apps shipped including SaaS CRMs, gaming platforms, real estate tools, and Discord bots. Stack: Next.js 16, TypeScript, Tailwind CSS, FastAPI, PostgreSQL, Prisma. I use Claude Code with 50+ custom skills for rapid delivery. Average turnaround: 2-4 weeks from broken prototype to production.
Matthew Butler
Systems Development Engineer @ Amazon Web Services
Taufan
I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms.
Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact.
Antriksh Narang
5 years+ Experienced Dev (Specially in Web Development), can help in python, javascript, react, next.js and full stack web dev technologies.
Victor Denisov
Developer
Matt Butler
Software Engineer @ AWS
Bastien Labelle
Full stack dev w/ 20+ years of experience
Stanislav Prigodich
15+ years building iOS and web apps at startups and enterprise companies. I want to use that experience to help builders ship real products - when something breaks, I'm here to fix it.
Rudra Bhikadiya
I build and fix web apps across Next.js, Node.js, and DBs.
Comfortable jumping into messy code, broken APIs, and mysterious bugs.
If your project works in theory but not in reality, I help close that gap.
PawelPloszaj
I'm fronted developer with 10+ years of experience with big projects. I have small backend background too
You don't need to be technical. Just describe what's wrong and a verified developer will handle the rest.
Get HelpFrequently Asked Questions
Why does the preview work after a full page refresh but not automatically?
This usually means the Hot Module Replacement (HMR) WebSocket connection has been lost. The build system compiles your changes but can't push them to the browser. Try reconnecting by refreshing once, and the HMR connection should re-establish.
Can a service worker interfere with live preview?
Yes. If your app registers a service worker for PWA functionality, it can cache and serve old versions of your files. Unregister the service worker in DevTools during development.