Common Issues general

My App Loads but Shows a Blank White Screen

You open your app or website and instead of seeing your content, you get nothing. Just a plain white screen. The page seems to load (the tab title might even show your app name), but the screen stays completely empty.

This is sometimes called the "white screen of death" and it's one of the most common problems with web apps. The frustrating part is that there's no obvious error message — just nothing. Your users see the same blank page and probably think your site is broken or doesn't exist.

The good news is that this usually has a specific, fixable cause. The bad news is that figuring out which one requires looking at things most non-technical people don't know how to check.

Error Messages You Might See

Blank/empty page Uncaught TypeError Failed to fetch ChunkLoadError net::ERR_BLOCKED_BY_CLIENT
Blank/empty pageUncaught TypeErrorFailed to fetchChunkLoadErrornet::ERR_BLOCKED_BY_CLIENT

Common Causes

  • JavaScript error blocking the page — Your app needs JavaScript to display content, and a single error can stop everything from showing up
  • Missing environment variables — Your app is looking for configuration values (like database addresses) that don't exist in production
  • Wrong build settings — The app was built with incorrect settings so the files it needs can't be found
  • API or database is down — Your app tries to load data before showing anything, and the data source isn't responding
  • Blank index.html — The main page file is empty or was overwritten during deployment
  • Browser blocking resources — Ad blockers, security extensions, or corporate firewalls are blocking files your app needs

How to Fix It

  1. Open the browser console — Press F12 (or right-click and choose "Inspect"), then click the "Console" tab to see error messages in red
  2. Try an incognito/private window — This rules out browser extensions and cached files as the cause
  3. Check if your backend is running — If your app loads data from a server, make sure that server is online and responding
  4. Look at the page source — Right-click the white page and choose "View Page Source" to see if there's any content at all
  5. Check deployment logs — Go to your hosting platform and look for error messages from the most recent deployment

Real developers can help you.

Taufan 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. PawelPloszaj PawelPloszaj I'm fronted developer with 10+ years of experience with big projects. I have small backend background too Bastien Labelle Bastien Labelle Full stack dev w/ 20+ years of experience Tejas Chokhawala Tejas Chokhawala Full-stack engineer with 5 years experience building production web apps using React, Next.js and TypeScript. Focused on performance, clean architecture and shipping fast. Experienced with Supabase/Postgres backends, Stripe billing, and building AI-assisted developer tools. Matthew Butler Matthew Butler Systems Development Engineer @ Amazon Web Services Matt Butler Matt Butler Software Engineer @ AWS Alvin Voo Alvin Voo I’ve watched the tech landscape evolve over the last decade—from the structured days of Java Server Pages to the current "wild west" of Agentic-driven development. While AI can "vibe" a frontend into existence, I specialize in the architecture that keeps it from collapsing. My expertise lies in the critical backend infrastructure: the parts that must be fast, secure, and scalable. I thrive on high-pressure environments, such as when I had only three weeks to architect and launch an Ethereum redemption system with minimal prior crypto knowledge, turning it into a major revenue stream. What I bring to your project: Forensic Debugging: I don't just "patch" bugs; I use tools like Datadog and Explain Analyzers to map out bottlenecks and resolve root causes—like significantly reducing memory usage by optimizing complex DB joins. Full-Stack Context: Deep experience in Node.js and React, ensuring backends play perfectly with mobile and web teams. Sanity in the Age of AI: I bridge the gap between "best practices" and modern speed, ensuring your project isn't just built fast, but built to last. Daniel Vázquez Daniel Vázquez Software Engineer with over 10 years of experience on Startups, Government, big tech industry & consulting. Jaime Orts-Caroff Jaime Orts-Caroff I'm a Senior Android developer, currently working at Aircall. I'm open to work in various fields! Luca Liberati Luca Liberati I work on monoliths and microservices, backends and frontends, manage K8s clusters and love to design apps architecture

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Frequently Asked Questions

Why is there no error message on the screen?

Modern web apps use JavaScript to build the entire page. If JavaScript fails, there's nothing to show the error to you on the page itself. The errors are hidden in the browser's developer console (press F12 to open it).

It works on my phone but not my computer (or vice versa). Why?

Different browsers and devices handle things differently. It could be a browser extension blocking something, an outdated browser that doesn't support your app's code, or a cached version on one device.

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