Replit
ui
Static Files Not Serving on Replit
CSS, JavaScript, and images return 404 or don't load on deployed Replit app. Static resources are missing or misconfigured.
Spring Boot has specific requirements for static file locations and configuration.
Error Messages You Might See
404 Not Found
GET /static/css/style.css - 404
Failed to load resource: the server responded with a status of 404
Common Causes
- Static files not in correct directory (should be src/main/resources/static)
- Spring static resource mapping not configured
- Build process excludes static files from JAR
- Incorrect static resource prefix in HTML templates
- GZIP compression causing browser caching issues
How to Fix It
Place files in src/main/resources/static/css, src/main/resources/static/js. Use Thymeleaf th:href=@{/path/to/file.css} for template links. Ensure build.gradle includes static resources. Disable static resource caching in development with spring.web.resources.cache.period=0. Check Content-Type headers are correct.
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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.
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Get HelpFrequently Asked Questions
Where do static files go?
src/main/resources/static/ - Spring Boot serves these automatically at /
How do I reference static files in Thymeleaf?
Use th:href="@{/css/style.css}" instead of /static/css/style.css