Deploy your JavaScript app to GitHub Pages
Step-by-step deployment help for JavaScript apps on GitHub Pages. We fix JavaScript-specific deployment issues, configure GitHub Pages, and get your app live. From $19.
JavaScript issues we fix before deploying
Common JavaScript problems that affect GitHub Pages deployments.
Prototype pollution
AI-generated code merges user-supplied objects into prototypes via Object.assign or spread operators without sanitization, enabling property injection attacks.
Loose equality comparisons
Using == instead of === leads to type coercion bugs where '0' == false, null == undefined, and other non-obvious truthy/falsy comparisons cause silent logic errors.
Unhandled promise rejections
Async functions without try/catch or .catch() handlers cause unhandled rejection warnings and silent failures in production.
Global variable leaks
Missing 'const' or 'let' declarations create implicit globals that pollute the global scope and cause unpredictable behavior across modules.
GitHub Pages deployment issues we check for
Common GitHub Pages problems that break JavaScript apps in production.
Client-side routing returns 404 on refresh
React Router and other SPA routers break on page refresh because GitHub Pages doesn't support URL rewrites. Only the root index.html is served for the base path.
API routes have no server to run on
AI-generated Next.js or Express backends can't run on GitHub Pages. There's no server-side execution — only static HTML, CSS, and JavaScript are served.
Base path not configured for project sites
Project sites deploy to username.github.io/repo-name, but AI tools build with root (/) as the base path, breaking all asset and route references.
Custom domain DNS propagation issues
CNAME file missing from the build output or DNS records misconfigured, causing the custom domain to point nowhere or show GitHub's 404 page.
Start with a self-serve audit
Get a professional review of your JavaScript project before deploying to GitHub Pages.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
How do I deploy a JavaScript app to GitHub Pages?
We handle JavaScript deployments to GitHub Pages end to end. Start with our code audit ($19) to identify deployment blockers specific to your JavaScript project, then we configure GitHub Pages, fix issues, and get your app live in production.
What JavaScript issues affect GitHub Pages deployments?
JavaScript projects commonly have prototype pollution and loose equality comparisons. On GitHub Pages, these combine with client-side routing returns 404 on refresh and api routes have no server to run on to cause deployment failures.
Can SpringCode deploy my JavaScript project to GitHub Pages?
Yes. We specialize in deploying JavaScript applications to GitHub Pages. We audit your codebase for JavaScript-specific issues, configure GitHub Pages correctly, and handle the full deployment so your app runs reliably in production.
What does JavaScript deployment to GitHub Pages cost?
Our code audit ($19) identifies all GitHub Pages deployment blockers in your JavaScript project. Full deployment assistance is scoped with a fixed quote after the audit — no hourly billing or surprise charges.
Related resources
Other techs on GitHub Pages
Deploy JavaScript elsewhere
Need help deploying JavaScript to GitHub Pages?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.