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
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
- Open browser console (F12 > Console) — there will almost certainly be errors there
- Check if the correct build output directory is configured in your deploy settings
- Look for mixed content warnings (HTTP resources on an HTTPS page)
- Verify that your app's homepage/base URL is set correctly for production
- Try a hard refresh (Ctrl+Shift+R or Cmd+Shift+R) to clear cached assets
Real developers can help you.
Richard McSorley
Full-Stack Software Engineer with 8+ years building high-performance applications for enterprise clients. Shipped production systems at Walmart (4,000+ stores), Cigna (20M+ users), and Arkansas Blue Cross. 5 patents in retail/supply chain tech. Currently focused on AI integrations, automation tools, and TypeScript-first architectures.
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.
Mehdi Ben Haddou
- Founder of Chessigma (1M+ users) & many small projects
- ex Founding Engineer @Uplane (YC F25)
- ex Software Engineer @Amazon and @Booking.com
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.
Matthew Jordan
I've been working at a large software company named Kainos for 2 years, and mainly specialise in Platform Engineering. I regularly enjoy working on software products outside of work, and I'm a huge fan of game development using Unity. I personally enjoy Python & C# in my spare time, but I also specialise in multiple different platform-related technologies from my day job.
legrab
I'll fill this later
Jaime Orts-Caroff
I'm a Senior Android developer, currently working at Aircall. I'm open to work in various fields!
Basel Issmail
’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems.
My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale.
In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals.
I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software.
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
Daniel Vázquez
Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting.
Describe what's wrong in plain English. No technical knowledge needed.
Get HelpFrequently 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.