From d1856b17d1b9a5ffba63ad7930a2e1e32fefbc49 Mon Sep 17 00:00:00 2001
From: Simon Pieters <zcorpan@gmail.com>
Date: Mon, 5 Feb 2018 15:20:32 +0100
Subject: [PATCH 1/2] Editorial: call out inconsistency in document.body
 behavior

Fixes #3403.

Tests: https://github.com/w3c/web-platform-tests/pull/9231
---
 source | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/source b/source
index 5832f71b7e5..18220431aed 100644
--- a/source
+++ b/source
@@ -9606,6 +9606,9 @@ partial interface <dfn id="document" data-lt="">Document</dfn> {
 
   </ol>
 
+  <p class="note">The <code data-x="dom-document-body">body</code> attribute has different behavior
+  on getting and setting when used for a non-HTML document, or in certain edge cases.</p>
+
   </div>
 
   <hr>

From 366b025664f047491b098843d57640dca1d61cf5 Mon Sep 17 00:00:00 2001
From: Simon Pieters <zcorpan@gmail.com>
Date: Mon, 12 Feb 2018 10:28:56 +0100
Subject: [PATCH 2/2] Reword note and add an example

---
 source | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/source b/source
index 18220431aed..6ca71210ef7 100644
--- a/source
+++ b/source
@@ -9606,8 +9606,22 @@ partial interface <dfn id="document" data-lt="">Document</dfn> {
 
   </ol>
 
-  <p class="note">The <code data-x="dom-document-body">body</code> attribute has different behavior
-  on getting and setting when used for a non-HTML document, or in certain edge cases.</p>
+  <p class="note">The value returned by the <code data-x="dom-document-body">body</code> getter is
+  not always the one passed to the setter.</p>
+
+  <div class="example">
+   <p>In this example, the setter successfully inserts a <code>body</code> element (though this is
+   non-conforming since SVG does not allow a <code>body</code> as child of <span>SVG
+   <code>svg</code></span>). However the getter will return null because the document element is not
+   <code>html</code>.</p>
+
+   <pre>&lt;svg xmlns="http://www.w3.org/2000/svg">
+ &lt;script>
+  document.body = document.createElementNS("http://www.w3.org/1999/xhtml", "body");
+  console.assert(document.body === null);
+ &lt;/script>
+&lt;/svg></pre>
+  </div>
 
   </div>