Fixed #13008 -- Added more Cache-Control headers to never_cache() decorator.

    Adds headers to a response to indicate that a page should never be cached.

    """

    patch_response_headers(response, cache_timeout=-1)

    patch_cache_control(response, no_cache=True, no_store=True, must_revalidate=True)

def patch_vary_headers(response, newheaders):

        url(r'^my_view/$', self.admin_site.admin_view(self.my_view))

    This wrapping will protect ``self.my_view`` from unauthorized access and

    will apply the ``django.views.decorators.cache.never_cache`` decorator to

    will apply the :func:`django.views.decorators.cache.never_cache` decorator to

    make sure it is not cached if the cache middleware is active.

    If the page is cacheable, but you still want the permission check to be

.. function:: add_never_cache_headers(response)

    Adds headers to a response to indicate that a page should never be cached.

    Adds a ``Cache-Control: max-age=0, no-cache, no-store, must-revalidate``

    header to a response to indicate that a page should never be cached.

    .. versionchanged:: 1.9

        Before Django 1.9, ``Cache-Control: max-age=0`` was sent. This didn't

        reliably prevent caching in all browsers.

.. function:: patch_vary_headers(response, newheaders)

* ``django.core.cache.backends.base.BaseCache`` now has a ``get_or_set()``

  method.

* :func:`django.views.decorators.cache.never_cache` now sends more persuasive

  headers (added ``no-cache, no-store, must-revalidate`` to ``Cache-Control``)

  to better prevent caching.

Email

^^^^^

precedence, and the header values will be merged correctly.)

If you want to use headers to disable caching altogether,

``django.views.decorators.cache.never_cache`` is a view decorator that adds

:func:`django.views.decorators.cache.never_cache` is a view decorator that adds

headers to ensure the response won't be cached by browsers or other caches.

Example::