Create page
Create a page 404.html and add it to the template folder
Test it
In the default settings.py file Django sets DEBUG = True and ALLOWED_HOSTS = []. We want to change both. Turning off debug will show us what a live site would show and ALLOWED_HOSTS restricts which HTTP requests Django will respond to so the URL needs to be explicitly added.
# demo_project/settings.py
DEBUG = False
ALLOWED_HOSTS = ['127.0.0.1']
Load static file when debug = False
When debug is False, django won’t load the static files
There is an extra option to be used with runserver command which forces Django to serve static files even when DEBUG=False
python manage.py runserver --insecure
Django docs ref: https://docs.djangoproject.com/en/dev/ref/contrib/staticfiles/#cmdoption-runserver-insecure
