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[1.11.x] Fixed #28786 -- Doc'd middleware ordering considerations due to CommonMiddleware setting Content-Length.

Backport of bc95314ca6af0b5e993ae07fdc7d8e6166d3b8ca from master
This commit is contained in:
Tim Graham 2017-11-08 10:02:30 -05:00
parent 6731672060
commit afcde50497

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@ -727,6 +727,12 @@ Miscellaneous
``Content-Length`` header as this is now done by
:class:`~django.middleware.common.CommonMiddleware`.
If you have a middleware that modifies a response's content and appears
before ``CommonMiddleware`` in the ``MIDDLEWARE`` or ``MIDDLEWARE_CLASSES``
settings, you must reorder your middleware so that responses aren't modified
after ``Content-Length`` is set, or have the response modifying middleware
reset the ``Content-Length`` header.
* :meth:`~django.apps.AppConfig.get_model` and
:meth:`~django.apps.AppConfig.get_models` now raise
:exc:`~django.core.exceptions.AppRegistryNotReady` if they're called before