Fighting client-side caching in Django

Question

I\'m using the render_to_response shortcut and don\'t want to craft a specific Response object to add additional headers to prevent client-side caching.

I\'d like to

Answer 1

To supplement existing answers. Here is a decorator that adds additional headers to disable caching:

from django.views.decorators.cache import patch_cache_control
from functools import wraps

def never_ever_cache(decorated_function):
    """Like Django @never_cache but sets more valid cache disabling headers.

    @never_cache only sets Cache-Control:max-age=0 which is not
    enough. For example, with max-axe=0 Firefox returns cached results
    of GET calls when it is restarted.
    """
    @wraps(decorated_function)
    def wrapper(*args, **kwargs):
        response = decorated_function(*args, **kwargs)
        patch_cache_control(
            response, no_cache=True, no_store=True, must_revalidate=True,
            max_age=0)
        return response
    return wrapper

And you can use it like:

class SomeView(View):
    @method_decorator(never_ever_cache)
    def get(self, request):
        return HttpResponse('Hello')