Replit
ui
Thymeleaf Static Resource Caching Issues
CSS or JavaScript changes don't appear after deployment. Browser caches old versions. Users see old styles or functionality.
Aggressive caching hides code updates.
Common Causes
- HTTP cache headers set too long
- Browser aggressively caches .css/.js files
- No cache busting (version strings in filenames)
- CDN cache not invalidated
- Service worker caching old resources
How to Fix It
Add version query string to resources: th:href=@{/css/style.css(v=${appVersion})}. Set cache headers: Cache-Control: no-cache for HTML, public max-age=3600 for static. Use content-hash in filename (style.a1b2c3d4.css). Disable cache in development: spring.web.resources.cache.period=0.
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Get HelpFrequently Asked Questions
How do I force browsers to refresh CSS?
Add query param: /css/style.css?v=1.0.1 and increment on release
Should I cache static files?
Yes, but with versioning. Use content hash for automated versioning