      .. attribute:: content_type
  
          The content type to use for the response. ``content_type`` is passed
          as a keyword argument to ``response_class``. Default is ``None`` --
          meaning that Django uses :setting:`DEFAULT_CONTENT_TYPE`.
  
      **Methods**
  
      .. method:: render_to_response(context, **response_kwargs)
  
 
</s> remove manually specified. Used with :setting:`DEFAULT_CONTENT_TYPE` to construct the
``Content-Type`` header.

.. setting:: DEFAULT_CONTENT_TYPE

``DEFAULT_CONTENT_TYPE``
------------------------

Default: ``'text/html'``

Default content type to use for all ``HttpResponse`` objects, if a MIME type
isn't manually specified. Used with :setting:`DEFAULT_CHARSET` to construct
the ``Content-Type`` header.

.. deprecated:: 2.0

    This setting is deprecated because it doesn't interact well with
    third-party apps and is obsolete since HTML5 has mostly superseded XHTML.
 </s> add manually specified. Used when constructing the ``Content-Type`` header. </s> remove     The MIME type to use for the resulting document. Defaults to the value of
    the :setting:`DEFAULT_CONTENT_TYPE` setting.
 </s> add     The MIME type to use for the resulting document. Defaults to
    ``'text/html'``. </s> remove # Default content type and charset to use for all HttpResponse objects, if a
# MIME type isn't manually specified. These are used to construct the
# Content-Type header.
DEFAULT_CONTENT_TYPE = 'text/html'
 </s> add # Default charset to use for all HttpResponse objects, if a MIME type isn't
# manually specified. It's used to construct the Content-Type header. </s> remove         :setting:`DEFAULT_CONTENT_TYPE` is used.
 </s> add         ``'text/html'`` is used. </s> remove         :setting:`DEFAULT_CONTENT_TYPE` is used.
 </s> add         ``'text/html'`` is used.
        meaning that Django uses ``'text/html'``.
      .. attribute:: content_type
  
          The content type to use for the response. ``content_type`` is passed
          as a keyword argument to ``response_class``. Default is ``None`` --
        meaning that Django uses ``'text/html'``.
  
      **Methods**
  
      .. method:: render_to_response(context, **response_kwargs)
  
keep keep keep keep replace keep keep keep keep keep
 Refs #27829 -- Removed settings.DEFAULT_CONTENT_TYPE per deprecation timeline. 
docs/ref/class-based-views/mixins-simple.txt