Merge branch 'lukeburden-brotli-cloudfront-docs' into master

Author: evansd

docs/django.rst

@@ -170,6 +170,21 @@ For apps on Heroku, you'd run this command
    heroku config:set DJANGO_STATIC_HOST=https://d4663kmspf1sqa.cloudfront.net
 
 
+Using compression algorithms other than gzip
+++++++++++++++++++++++++++++++++++++++++++++
+
+By default, CloudFront will discard any ``Accept-Encoding`` header browsers include
+in requests, unless the value of the header is gzip. If it is gzip, CloudFront will
+fetch the uncompressed file from the origin, compress it, and return it to the
+requesting browser.
+
+To get CloudFront to not do the compression itself as well as serve files compressed
+using other algorithms, such as Brotli, you must configure your distribution to
+`cache based on the Accept-Encoding header`__. You can do this in the ``Behaviours``
+tab of your distribution.
+
+.. __: https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/ServingCompressedFiles.html#compressed-content-custom-origin
+
 .. note::
 
     By default your entire site will be accessible via the CloudFront URL. It's