# Django 5.2 documentation

# Source code for django.contrib.flatpages.middleware

    from django.conf import settings
    from django.contrib.flatpages.views import flatpage
    from django.http import Http404
    from django.utils.deprecation import MiddlewareMixin

    class FlatpageFallbackMiddleware(MiddlewareMixin):
        def process_response(self, request, response):
            if response.status_code != 404:
                return response  # No need to check for a flatpage for non-404 responses.
            try:
                return flatpage(request, request.path_info)
            # Return the original response if any errors happened. Because this
            # is a middleware, we can't assume the errors will be caught elsewhere.
            except Http404:
                return response
            except Exception:
                if settings.DEBUG:
                    raise
                return response