Sometimes users download an outdated version of your file — because their browser cached it.
Here’s how to force the browser to get the latest version every time.
✅ 1. Use versioned file names
Instead of:
Use:
✅ New file name = no cache hit.
✅ 2. Add cache-busting query strings
Example:
✅ Browsers treat ?v=xxx as a new request.
✅ 3. Set proper cache headers on server
Apache (.htaccess):
Nginx:
✅ 4. Use CDN cache rules (Cloudflare, etc.)
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Add “Bypass Cache on Cookie”
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Set rules to always fetch latest file from origin
✅ Prevents stale downloads globally.
✅ 5. Educate users to clear cache (as fallback)
Include:
“If you’re seeing an older file, try pressing Ctrl + F5 to reload.”
Key points to remember
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Rename files with version numbers
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Use query strings for cache busting
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Set server headers to skip browser cache
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CDNs need proper rules to fetch fresh content