From 469bf2db15597f2c87cb0f8f64132056d2467f15 Mon Sep 17 00:00:00 2001
From: Adam Johnson <me@adamj.eu>
Date: Mon, 3 Feb 2020 12:43:11 +0000
Subject: [PATCH] Fixed #31210 -- Doc'd how to reproduce HttpRequest.is_ajax()
 in release notes.

---
 docs/releases/3.1.txt | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/docs/releases/3.1.txt b/docs/releases/3.1.txt
index aaf64b2e2bf..4a165156e13 100644
--- a/docs/releases/3.1.txt
+++ b/docs/releases/3.1.txt
@@ -482,6 +482,10 @@ Miscellaneous
   the new :meth:`.HttpRequest.accepts` method if your code depends on the
   client ``Accept`` HTTP header.
 
+  If you are writing your own AJAX detection method, ``request.is_ajax()`` can
+  be reproduced exactly as
+  ``request.headers.get('x-requested-with') == 'XMLHttpRequest'``.
+
 * The encoding format of cookies values used by
   :class:`~django.contrib.messages.storage.cookie.CookieStorage` is different
   from the format generated by older versions of Django. Support for the old