5.3 KiB
🔧 Quick Mobile Login Fix - Steps to Follow
Immediate Actions (Do This First!)
1. Access the Debug Page on Your Mobile Device
http://your-server-ip:3000/mobile-login-debug.html
Replace your-server-ip with your actual server address.
2. Run All Tests
- Tap "Run System Tests"
- Tap "Test Storage Capabilities"
- Tap "Test Crypto Library"
- Note which tests FAIL ❌
3. Common Fixes Based on Test Results
If "sessionStorage failed" ❌
Problem: You're in Private/Incognito mode Fix: Exit private browsing and use normal mode
If "CryptoJS is not loaded" ❌
Problem: Library didn't load Fix:
- Refresh the page (pull down on mobile)
- Clear browser cache
- Check internet connection
If all tests pass ✅ but login still fails
Problem: Might be form submission issue Fix: Try these in order:
- Close mobile keyboard before tapping "Login"
- Don't use keyboard "Go/Enter" - tap the Login button
- Try landscape orientation
- Try a different mobile browser
Rebuild Frontend with Fixes
The code has been updated with better mobile detection. Rebuild:
cd /media/pts/Website/Church_HOP_MusicData/frontend
npm run build
Then restart your services:
sudo systemctl restart church-music-frontend
# or your restart command
Check Browser Console on Mobile
For Android Chrome
- Connect phone to computer via USB
- On computer, open Chrome and go to:
chrome://inspect - Find your device and click "inspect"
- Look at Console tab for errors
For iOS Safari
- Enable Web Inspector: Settings > Safari > Advanced
- Connect iPhone to Mac
- Open Safari on Mac > Develop > [Your iPhone] > Select page
- Check Console for errors
What the Code Changes Do
1. Early Warning System
When the login page loads, it now automatically checks:
- ✅ Is CryptoJS library loaded?
- ✅ Is localStorage working?
- ✅ Is sessionStorage working?
If any fail, you'll see an orange warning banner at the top of the login form.
2. Better Error Messages
Instead of generic "Login failed", you now see:
- "Encryption library not loaded. Please refresh the page."
- "Storage error: Please ensure cookies/storage is enabled"
- Specific browser console logs for debugging
3. Storage Verification
After setting session data, the code now verifies it was actually saved:
sessionStorage.setItem("authenticated", "true");
// New: Verify it worked
const verifyAuth = sessionStorage.getItem("authenticated");
if (verifyAuth !== "true") {
throw new Error("sessionStorage failed to save");
}
Test on Desktop First
Before testing on mobile, verify on desktop:
- Open in Chrome
- Press F12 (Developer Tools)
- Press Ctrl+Shift+M (Mobile Device Toggle)
- Select an iPhone or Android device
- Try logging in
- Check Console tab for any errors
Manual Test Steps on Mobile
-
Clear Everything First:
- Access debug page
- Tap "Clear localStorage & sessionStorage"
- Confirm
-
Run System Checks:
- Tap each test button
- Screenshot any failures
-
Test Login:
- Username:
hop - Password:
hop@2026ilovejesus - Watch for warning banners
- Username:
-
Check Session:
- After login attempt, go back to debug page
- Tap "Show Stored Credentials"
- Look for "Currently authenticated" ✅
Default Credentials Reminder
- Username: hop
- Password: hop@2026ilovejesus
Files Modified
-
frontend/src/App.js
- Added useEffect hook to check system capabilities on mount
- Added systemWarning state
- Enhanced handleLogin with better error handling
- Added console.log debugging statements
- Verifies sessionStorage operations succeed
-
frontend/public/mobile-login-debug.html
- Complete diagnostic tool
- Tests all system capabilities
- Shows exact failure points
-
MOBILE_LOGIN_FIX.md
- Full troubleshooting guide
- Explanations of each issue
Next Steps Priority Order
- ✅ Access debug page on mobile - This is most important!
- ✅ Run all tests - Identify the exact problem
- ✅ Try suggested fix - Based on test results
- ✅ Rebuild if needed - If you want latest code changes
- ✅ Test again - Verify it works
Most Likely Causes (In Order)
-
Private/Incognito Mode (70% of cases)
- Solution: Use normal browsing mode
-
Browser Storage Disabled (20% of cases)
- Solution: Enable cookies/storage in browser settings
-
Slow Network / Library Loading (8% of cases)
- Solution: Wait for full page load, refresh if needed
-
Mobile Keyboard Interference (2% of cases)
- Solution: Close keyboard before tapping Login button
Quick Command Reference
Rebuild Frontend
cd /media/pts/Website/Church_HOP_MusicData/frontend
npm run build
Restart Services
sudo systemctl restart church-music-frontend
sudo systemctl restart church-music-backend
Check Service Status
sudo systemctl status church-music-frontend
View Logs
sudo journalctl -u church-music-frontend -f
Need Help?
Share the following info:
- Debug page test results (screenshot)
- Mobile device & browser (e.g., "iPhone 13, Safari 17")
- Any warning banners that appear
- Console errors (if you can access them)
Created: December 16, 2025
Status: Ready to test