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+# Troubleshooting ERR_TOO_MANY_REDIRECTS
+
+## Penyebab Umum
+
+1. **Konfigurasi Nginx/Apache** yang redirect `/` ke `/index.php`
+2. **.htaccess** di root yang melakukan redirect
+3. **JavaScript redirect** yang menyebabkan loop
+
+## Solusi
+
+### 1. Cek Konfigurasi Nginx
+
+Pastikan di server production, konfigurasi nginx TIDAK melakukan redirect loop:
+
+```nginx
+server {
+    root /www/wwwroot/retribusi.btekno.cloud/retribusi/public;
+    index index.php index.html;
+
+    location / {
+        # JANGAN gunakan redirect ke index.php jika sudah di root
+        try_files $uri $uri/ =404;
+    }
+
+    location ~ \.php$ {
+        fastcgi_pass unix:/var/run/php/php8.2-fpm.sock;
+        fastcgi_index index.php;
+        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+        include fastcgi_params;
+    }
+}
+```
+
+**PENTING**: 
+- Document root HARUS di `/retribusi/public` (bukan `/retribusi`)
+- JANGAN gunakan `try_files $uri $uri/ /index.php?$query_string;` di root location
+
+### 2. Cek .htaccess
+
+Pastikan `.htaccess` di folder `public/` TIDAK melakukan redirect:
+- File `.htaccess` di `public/` sudah benar (tidak ada redirect)
+- Jika ada `.htaccess` di root, pastikan tidak ada redirect ke `index.php`
+
+### 3. Clear Browser Cache
+
+1. Clear cookies untuk domain `retribusi.btekno.cloud`
+2. Clear cache browser
+3. Hard refresh (Ctrl+Shift+R atau Cmd+Shift+R)
+
+### 4. Test Langsung
+
+Test dengan curl untuk melihat redirect chain:
+
+```bash
+curl -I https://retribusi.btekno.cloud/index.php
+```
+
+Jika ada banyak `Location:` headers, berarti ada redirect loop di server.
+
+### 5. Cek Log Nginx
+
+```bash
+tail -f /var/log/nginx/retribusi_error.log
+```
+
+Lihat apakah ada error atau redirect yang berulang.
+
+## Konfigurasi yang Benar
+
+### Nginx (Production)
+
+```nginx
+server {
+    listen 80;
+    server_name retribusi.btekno.cloud;
+    
+    # Document root HARUS di folder public
+    root /www/wwwroot/retribusi.btekno.cloud/retribusi/public;
+    index index.php index.html;
+
+    location / {
+        # Jangan redirect, langsung serve file
+        try_files $uri $uri/ =404;
+    }
+
+    location ~ \.php$ {
+        fastcgi_pass unix:/var/run/php/php8.2-fpm.sock;
+        fastcgi_index index.php;
+        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
+        include fastcgi_params;
+    }
+}
+```
+
+### Apache (Production)
+
+```apache
+<VirtualHost *:80>
+    ServerName retribusi.btekno.cloud
+    DocumentRoot /www/wwwroot/retribusi.btekno.cloud/retribusi/public
+    
+    <Directory /www/wwwroot/retribusi.btekno.cloud/retribusi/public>
+        Options -Indexes +FollowSymLinks
+        AllowOverride All
+        Require all granted
+    </Directory>
+</VirtualHost>
+```
+
+## Checklist
+
+- [ ] Document root di nginx/apache mengarah ke folder `public/`
+- [ ] Tidak ada redirect di `.htaccess` di root
+- [ ] `.htaccess` di `public/` tidak ada redirect (hanya security headers)
+- [ ] Konfigurasi nginx tidak menggunakan `try_files ... /index.php` di root location
+- [ ] Browser cache sudah di-clear
+- [ ] Cookies sudah di-clear
+