Fix My Bolt.new App
That Breaks in Production
Bolt.new generated the code and it worked in the preview. Now it fails in production: build errors, broken auth, database problems, or runtime crashes. I fix it directly on Bolt, flat-rate, usually within 48 hours.
Common scenario: A team deployed to Railway and got a blank screen: no error in the browser, just white. Bolt's WebContainer had run everything same-origin; in production, CORS headers were missing and the PostgreSQL connection string used a format Railway does not accept. Two environment variables and a 3-line CORS fix resolved it.
Part of my vibe-coded app production service: fixing AI-generated code across Bolt, Lovable, v0, Rork, and Replit.
Why this happens
Why Bolt.new apps break in production
WebContainer ≠ a real server
Bolt.new runs your code inside a WebContainer, a browser-based runtime that simulates a server. The preview looks like a real app, but the networking, filesystem, and module resolution work differently than they do on Vercel, Railway, or any real Node.js host. CORS errors that never appeared in the Bolt preview surface immediately in production because all WebContainer traffic was same-origin. Environment variables set in the Bolt UI do not automatically carry over to external deployments.
Pattern-matched code doesn't always wire together
Bolt generates code quickly by pattern-matching: which means it often imports packages, expects environment variables, or writes backend logic in ways that look correct in isolation but do not connect properly in production. Build tool differences between Vite (which Bolt frequently uses) and SSR-style Next.js hosting cause silent failures. A developer who understands real deployment pipelines can usually locate these issues within minutes and fix them without rewriting the application.
What I fix in Bolt.new apps
WebContainer-only code
Code that relied on Bolt’s in-browser WebContainer runtime and breaks on a real Node host. Filesystem, port, and module-resolution assumptions rewritten for production.
CORS and same-origin errors
Requests that were same-origin in the Bolt preview now fail cross-origin. CORS headers, allowed origins, and proxy config fixed.
Database connection strings
PostgreSQL or Supabase URLs in a format Railway, Render, or Vercel rejects. Connection strings, SSL flags, and pooling corrected.
Vite vs SSR build issues
Bolt’s Vite setup clashes with SSR-style Next.js hosting, causing silent build failures. Build tooling and output config aligned to your host.
Env vars not carried over
Variables set in the Bolt UI never reach your external deployment. Every secret audited and re-provisioned on the target platform.
Mobile layout issues
Responsive layout breaks on small screens. Viewport overflow, flex/grid issues, and mobile-specific bugs fixed.
Security vulnerabilities
Exposed API keys, missing auth guards, or unsafe input handling. Bolt-generated code audited and secured properly.
Regression after update
Worked before but broke after a Bolt regeneration. I identify what changed and restore the correct behaviour.
How it works
01
Share the project
Give me access to your Bolt.new project or share the exported code. I review before quoting.
02
Flat-rate quote
I identify the issues and send a fixed price. You approve before any work starts.
03
I fix it
Changes made directly on Bolt or in the codebase, you choose whichever is simpler for your setup.
04
Deploy and go live
Your fixed app deploys from the same platform. Live within 48 hours of starting.
Frequently asked questions
What Bolt.new issues do you fix?
Build failures, deployment errors, broken auth, database connection issues, environment variable configuration, API call failures, mobile layout bugs, and production-only errors that do not show up in the Bolt preview.
Do you work inside the Bolt.new platform?
Yes. You grant access and I work directly in Bolt. You can also export and share the code if you prefer, either works.
How quickly can you fix it?
Most fixes within 24–48 hours. I give you an honest timeline before starting, not an optimistic guess.
How does pricing work?
I review the project, identify what is broken, and send a flat-rate quote per issue. You approve before any work starts.
My Bolt app was working but stopped after an update: can you help?
Yes. Regression bugs are common in AI-generated code. I diagnose what changed and restore the correct behaviour.
Can you add features to my Bolt app?
Yes. Beyond fixing bugs I can add new functionality, improve performance, or prepare the app for a proper production launch.
Using Lovable or v0 instead?
Ready to get your Bolt.new app working?
Share the project and describe what is broken. I will review it and send a flat-rate fix quote within hours.
Or email usama@bitrupt.co