Common Issues deployment

App Shows a Blank White Page After Deploy

You deployed your app and instead of seeing your application, you get a completely blank white page. No errors visible on the page itself — just white nothing.

Error Messages You Might See

Uncaught TypeError: Cannot read properties of undefined ChunkLoadError: Loading chunk failed Mixed Content: The page was loaded over HTTPS but requested an insecure resource
Uncaught TypeError: Cannot read properties of undefinedChunkLoadError: Loading chunk failedMixed Content: The page was loaded over HTTPS but requested an insecure resource

Common Causes

  • JavaScript build errors that prevent the app from rendering
  • Wrong base path or public URL configuration
  • Missing index.html or incorrect build output directory
  • HTTPS/HTTP mismatch causing mixed content blocking
  • API calls failing silently, preventing the UI from loading

How to Fix It

  1. Open browser console (F12 > Console) — there will almost certainly be errors there
  2. Check if the correct build output directory is configured in your deploy settings
  3. Look for mixed content warnings (HTTP resources on an HTTPS page)
  4. Verify that your app's homepage/base URL is set correctly for production
  5. Try a hard refresh (Ctrl+Shift+R or Cmd+Shift+R) to clear cached assets

Real developers can help you.

Nam Tran Nam Tran 10 years as fullstack developer Victor Denisov Victor Denisov Developer Jen Jacobsen Jen Jacobsen I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses. I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain. zipking zipking I am a technologist and product builder dedicated to creating high-impact solutions at the intersection of AI and specialized markets. Currently, I am focused on PropScan (EstateGuard), an AI-driven SaaS platform tailored for the Japanese real estate industry, and exploring the potential of Archify. As an INFJ-T, I approach development with a "systems-thinking" mindset—balancing technical precision with a deep understanding of user needs. I particularly enjoy the challenge of architecting Vertical AI SaaS and optimizing Small Language Models (SLMs) to solve specific, real-world business problems. Whether I'm in a CTO-level leadership role or hands-on with the code, I thrive on building tools that turn complex data into actionable value. Prakash Prajapati Prakash Prajapati I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale. Kingsley Omage Kingsley Omage Fullstack software engineer passionate about AI Agents, blockchain, LLMs. David Olverson 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. ISHANTDEEP SINGH ISHANTDEEP SINGH Senior Software Engineer with 7+ years of experience in React, JavaScript, TypeScript, Next.js, and Node.js. I’ve also worked as a tech lead for startups, owning end-to-end technical execution including architecture, development, scaling, and delivery. I bring a strong mix of hands-on coding, product thinking, and technical leadership, and I’m comfortable building products from scratch as well as improving and scaling existing systems. rayush33 rayush33 JavaScript (React.js, React Native, Node.js) Developer with demonstrated industry experience of 4+ years, actively looking for opportunities to hone my skills as well as help small-scale business owners with solutions to technical problems Stanislav Prigodich 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.

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Frequently Asked Questions

The page is blank but there are no visible errors. Where do I look?

Open browser developer tools (F12) and check the Console tab. There are almost always JavaScript errors there even when the page appears blank.

It worked yesterday and now it's blank. What changed?

Check your recent commits or deploys. A broken import, missing env var, or updated dependency is usually the cause.

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