Django CSRF Verification Issues

Your inconsistent CSRF verification errors, even after removing the middleware, suggest there might be multiple factors at play. Here are some potential causes and solutions:

Possible Causes

1. View-Level CSRF Protection: Even with the middleware removed, individual views might be using the @csrf_protect decorator, which enforces CSRF verification regardless of middleware settings.

2. Class-Based Views: If you're using Django's class-based views, they might have CSRF protection built-in through mixins.

3. Template Tags: Your templates might be using the {% csrf_token %} tag, which expects CSRF protection to be enabled.

4. Session Issues: CSRF tokens are stored in the session. If your sessions are expiring unexpectedly or not being properly maintained across requests, this could cause intermittent failures.

5. Proxy/Load Balancer: If your application is behind a proxy or load balancer, it might be affecting the headers that Django uses to verify the origin.

Troubleshooting Steps

1. Check for View-Level Protection:
   Look for any views using the @csrf_protect decorator:

   PYTHONCopied
   from django.views.decorators.csrf import csrf_protect
   
   @csrf_protect
   def my_view(request):
       # ...

2. Examine Class-Based Views:
   Check if you're using FormView, UpdateView, or other CBVs that might enforce CSRF protection.

3. Review Your Settings:
   Ensure your settings are correctly configured:

   PYTHONCopied
   # For development with DEBUG=True
   CSRF_TRUSTED_ORIGINS = ['https://yourdomain.com', 'http://localhost:8000']
   
   # Make sure your MIDDLEWARE setting doesn't include CsrfViewMiddleware
   MIDDLEWARE = [
       # ... other middleware
       # 'django.middleware.csrf.CsrfViewMiddleware',  # Should be commented out
       # ... other middleware
   ]

4. Check Request Methods:
   CSRF protection only applies to unsafe HTTP methods (POST, PUT, DELETE, etc.). If you're using these methods, ensure you're including the CSRF token in your requests.

5. Inspect Network Requests:
   Use browser developer tools to check if the CSRF token is being sent correctly in your requests.

If you need more specific help, consider sharing your view code and the exact error messages you're receiving.