Bolt ui

Modal Dialog Accessibility Issues - Focus Trap Not Working

Modal dialogs aren't accessible. Users can tab to elements behind the modal, keyboard focus isn't trapped, or screen readers don't announce the modal.

Accessibility testing tools flag issues with focus management and ARIA attributes.

Error Messages You Might See

Focus escapes modal to background Screen reader doesn't announce modal No way to close without mouse Keyboard navigation broken in modal
Focus escapes modal to backgroundScreen reader doesn't announce modalNo way to close without mouseKeyboard navigation broken in modal

Common Causes

  1. No focus trap - focus can escape to background content
  2. Missing dialog role or aria-modal attribute
  3. ESC key doesn't close modal
  4. No aria-labelledby or aria-describedby
  5. Background content not marked inert

How to Fix It

Use accessible modal library: react-modal, headless-ui, or radix-ui Dialog

Or implement: focus-trap package for managing focus

Add attributes: role='dialog' aria-modal='true' aria-labelledby='title'

Close on ESC: window.addEventListener('keydown', e => e.key === 'Escape' && closeModal())

Mark background inert:

{content}

Real developers can help you.

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. Vlad Temian Vlad Temian 15+ years shipping production infrastructure for startups. Former CTO at qed.builders (acquired by The Sandbox). Cursor ambassador and agentic tooling builder. I've scaled systems, automated deployments, and built observability tools for AI coding workflows. I specialize in taking vibe-coded apps from broken prototype to production-ready: fixing Supabase auth/RLS, Stripe integrations, deployment pipelines, and cleaning up AI-generated spaghetti. I build tools in this space (agentprobe, claudebin, micode) and understand both sides: how AI generates code and why it breaks. https://blog.vtemian.com/ Jared Hasson Jared Hasson Full time lead founding dev at a cyber security saas startup, with 10 yoe and a bachelor's in CS. Building & debugging software products is what I've spent my time on for forever Richard McSorley 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. Bastien Labelle Bastien Labelle Full stack dev w/ 20+ years of experience Matthew Jordan 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. Kingsley Omage Kingsley Omage Fullstack software engineer passionate about AI Agents, blockchain, LLMs. Mehdi Ben Haddou Mehdi Ben Haddou - Founder of Chessigma (1M+ users) & many small projects - ex Founding Engineer @Uplane (YC F25) - ex Software Engineer @Amazon and @Booking.com hanson1014 hanson1014 Full-stack developer experienced in fixing and deploying AI-generated apps from Lovable, Bolt.new, Cursor, and Replit. I specialize in debugging Supabase integration issues (auth flows, RLS policies, database connections), fixing broken deployments, resolving routing/blank screen problems, and cleaning up messy React/Vite codebases. I also build production apps with the Claude API and have shipped a Mac desktop dev tool (Nexterm from scratch. Based in Hong Kong, fast turnaround. 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.

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Frequently Asked Questions

What should I use for modals?

Headless UI Dialog, Radix Dialog, or react-modal. These handle accessibility correctly

How do I trap focus in modal?

Use focus-trap library or: track focus, when focus reaches last element, move to first (and vice versa)

What ARIA attributes for modal?

role='dialog' aria-modal='true' aria-labelledby='title-id' aria-describedby='desc-id'

Related Bolt Issues

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