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🔧 CDN Cache Bypass Solution (No Purge Access)

Date: October 20, 2025 Issue: Hostinger CDN caching old admin panel version Status: Fix deployed on server, awaiting cache expiration

✅ WHAT WAS DONE

1. Admin Panel Fix (COMPLETE)

  • ✅ Fixed missing <script> tag at line 4631
  • ✅ Removed duplicate API adapter code from template
  • ✅ File deployed: /var/www/html/admin-panel.html (271,734 bytes)
  • ✅ MD5: 71e9a36582465f7ee3b63f146ef5c045

2. Cache-Busting Attempts

Tried:

  • ❌ Cache-Control headers (CDN ignores them on cached content)
  • ❌ File renaming (CDN cached the new filename too)
  • ❌ Query string parameters (blocked by IP whitelist + HTTP auth)
  • ❌ Nginx reload/restart (CDN serves from its own cache)

Result: Hostinger's CDN operates at network infrastructure level, beyond your nginx control

🎯 THE SOLUTION

Since you don't have CDN purge access, there are 2 options:

Option 1: Wait for Cache TTL (RECOMMENDED)

Time: 1-24 hours (typical Hostinger CDN TTL) Action: None required Outcome: CDN cache will expire automatically, fixed version will be served

How to check if cache cleared:

curl -s https://latanda.online/admin-panel.html | md5sum
# When you see: 71e9a36582465f7ee3b63f146ef5c045 ✅ Cache cleared!
# Currently shows: 9326d06898681ce667ce3df451c4270b ❌ Still cached

Option 2: Contact Hostinger Support

Time: 30 minutes - 2 hours Action: Submit support ticket Message template:

Subject: Request: Purge CDN cache for latanda.online/admin-panel.html

Hello Hostinger Support,

I've updated a file on my website and need to purge the CDN cache for it:

Domain: latanda.online
File: /admin-panel.html
Reason: Critical bug fix deployed, need cache invalidation

Can you please purge the CDN cache for this specific file?

Thank you!

✅ VERIFICATION

The Fix IS Working on the Server

Proof - File on Disk:

$ grep -c "function approveAppeal" /var/www/html/admin-panel.html
2  # ✅ Both instances found

$ grep -B 2 "function approveAppeal" /var/www/html/admin-panel.html | head -6
        // Appeal approval/rejection functions
        function approveAppeal(depositId) {
--
    <script>  # ✅ Properly wrapped in script tags!

0 instances of exposed JavaScript code (checked by searching body text)

CDN Still Serving Old Version

Evidence:

$ curl -s https://latanda.online/admin-panel.html | md5sum
9326d06898681ce667ce3df451c4270b  # ❌ OLD broken version

$ md5sum /var/www/html/admin-panel.html
71e9a36582465f7ee3b63f146ef5c045  # ✅ NEW fixed version

HTTP Headers (Cached):

last-modified: Sat, 04 Oct 2025 05:44:35 GMT  ❌ OLD
etag: "68e0b443-4265b"                        ❌ OLD
content-length: 271963 bytes                  ❌ OLD (229 bytes larger)

🕐 EXPECTED TIMELINE

Time Event Status
Now (Oct 20, 17:00) Fix deployed to server ✅ DONE
Oct 20, 18:00 Check if cache expired (1 hour) ⏳ Pending
Oct 20, 22:00 Check if cache expired (6 hours) ⏳ Pending
Oct 21, 08:00 Check if cache expired (12 hours) ⏳ Pending
Oct 21, 17:00 Cache definitely expired (24 hours) ⏳ Pending

📋 HOW TO CHECK IF CACHE CLEARED

Quick Check (From Your Computer)

Visit: https://latanda.online/admin-fixed.html

This page shows the fix status and links to the admin panel.

Technical Check (From Server)

# Check MD5 of served file
curl -s https://latanda.online/admin-panel.html | md5sum

# If result is: 71e9a36582465f7ee3b63f146ef5c045
# ✅ CACHE CLEARED! Fixed version is live!

# If result is: 9326d06898681ce667ce3df451c4270b
# ❌ Still cached, wait longer

Visual Check (From Browser)

  1. Access: https://latanda.online/admin-panel.html
  2. Enter credentials (IP whitelist + password)
  3. Scroll to the bottom of the page
  4. If you see:
    • No JavaScript code visible ✅ Fixed!
    • JavaScript code like "function approveAppeal..." ❌ Still cached

Important: Use Ctrl+Shift+R (hard refresh) or incognito mode to bypass browser cache

🛠️ NGINX IMPROVEMENTS ADDED

While waiting for cache expiration, I added these improvements:

1. No-Cache Headers for Admin Panel

File: /etc/nginx/sites-enabled/latanda.online

Added to admin panel location block:

# Layer 4: Force no-cache to bypass CDN (added Oct 20, 2025)
add_header Cache-Control "no-cache, no-store, must-revalidate, max-age=0" always;
add_header Pragma "no-cache" always;
add_header Expires "0" always;

Effect: Future admin panel updates will not be cached by CDN

2. Query String Support

Changed:

# Old: location ~ ^/admin-panel.*\.html$ {
# New: location ~ ^/admin-panel.*\.html {

Effect: URLs like admin-panel.html?v=123 now work (previously blocked)

Backups created:

  • /etc/nginx/sites-enabled/latanda.online.backup-nocache-1761000530

📊 CURRENT FILE STATUS

File Size MD5 Status
/var/www/html/admin-panel.html 271,734 bytes 71e9a3658... ✅ FIXED
CDN cached version 271,963 bytes 9326d0689... ❌ OLD
Difference -229 bytes Duplicate code removed

🎯 WHAT TO DO NOW

Immediate (Right Now)

Nothing! The fix is deployed and working on the server.

Next Hour (Every hour until cleared)

Check if cache expired:

curl -s https://latanda.online/admin-panel.html | md5sum

When you see 71e9a36582465f7ee3b63f146ef5c045, the cache is cleared!

Alternative (Optional)

Contact Hostinger support with the template above to request manual cache purge

🎭 PLAYWRIGHT TEST

Test file: /home/ebanksnigel/la-tanda-web/test-admin-panel-fix.js

Run test after cache clears:

node /home/ebanksnigel/la-tanda-web/test-admin-panel-fix.js

Current result: ❌ FAIL (because CDN serves old version) Expected after cache clear: ✅ PASS - No exposed JavaScript code

🔒 SECURITY STATUS

Admin panel protection (Still active):

  • ✅ Layer 1: IP whitelist (2a09:bac1:3280:8::1fb:6c)
  • ✅ Layer 2: HTTP Basic Auth (password: mF93Ma+hv4UH7QrJaWAI2Q==)
  • ✅ Layer 3: Security headers (X-Frame-Options, XSS Protection)
  • ✅ Layer 4: No-cache headers (NEW)

Impact of exposed code: Minimal

  • Client-side JavaScript only
  • No credentials or API keys exposed
  • Admin panel already protected by IP + password
  • Only visual/aesthetic issue

📝 SUMMARY

Problem: CDN caching old admin panel version with exposed JavaScript code Fix: Deployed to server ✅ Blocker: No CDN purge access Solution: Wait for cache TTL (1-24 hours) OR contact Hostinger support Next Check: Every hour until MD5 matches 71e9a36582465f7ee3b63f146ef5c045

🚀 AFTER CACHE CLEARS

Once cache is cleared, run final validation:

  1. Check MD5:

    curl -s https://latanda.online/admin-panel.html | md5sum
# Should be: 71e9a36582465f7ee3b63f146ef5c045

  2. Run Playwright:

    node test-admin-panel-fix.js
# Should show: 🟢 OVERALL: FIX SUCCESSFUL

  3. Visual check:

    • Access admin panel in browser
    • Scroll to bottom
    • Confirm no visible JavaScript code

  4. Mark as complete! 🎉

Document Status: Cache Bypass Guide Last Updated: October 20, 2025 17:15 MST Next Action: Wait for cache expiration or contact Hostinger support