Troubleshooting

• No settings configured: set DJANGO_SETTINGS_MODULE or configure EDGE_ISR.
• Redis errors: check REDIS_URL and connectivity.
• Headers missing: ensure middleware is installed and decorator applied; check for other middlewares overriding Cache-Control.
• CDN not purging: verify credentials/zone/distribution and that you’re purging exact URLs.
• Tests fail with “No module named 'tests'”: run python -m pytest or ensure PYTHONPATH includes repo root.