Cache Clear Helper

🛠️ How to Fix Cache Issues:

1. Hard Refresh: Press Ctrl+Shift+R (Windows) or Cmd+Shift+R (Mac)
2. Clear Browser Cache:
   • Chrome: Settings → Privacy → Clear browsing data
   • Firefox: Settings → Privacy → Clear Data
   • Safari: Develop → Empty Caches
3. Try Incognito Mode: Open the book page in a private/incognito window
4. Disable Cache (Dev Mode):
   • Open Developer Tools (F12)
   • Go to Network tab
   • Check "Disable cache"

✅ What's Been Fixed:

• ✓ Added aggressive cache prevention headers
• ✓ Implemented cache-busting for images (timestamp in URL)
• ✓ Added JavaScript to force reload from cache
• ✓ CSS files now have version parameter
• ✓ Database paths cleaned (no 'images/books/' prefix)