From 4a7cb1f867fe6b7cd624c9288189ee94c5451993 Mon Sep 17 00:00:00 2001
From: Brian Kardell <bkardell@igalia.com>
Date: Tue, 11 Feb 2020 10:01:05 -0500
Subject: [PATCH 1/2] add MathMLLinkableElement.idl

---
 webidl/MathMLLinkableElement.idl | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 webidl/MathMLLinkableElement.idl

diff --git a/webidl/MathMLLinkableElement.idl b/webidl/MathMLLinkableElement.idl
new file mode 100644
index 0000000..26335d8
--- /dev/null
+++ b/webidl/MathMLLinkableElement.idl
@@ -0,0 +1,16 @@
+[Exposed=Window]
+interface MathMLLinkableElement : MathMLElement { 
+  [CEReactions] attribute DOMString target;
+  [CEReactions] attribute DOMString download;
+  [CEReactions] attribute USVString ping;
+  [CEReactions] attribute DOMString rel;
+  [SameObject, PutForwards=value] readonly attribute DOMTokenList relList;
+  [CEReactions] attribute DOMString hreflang;
+  [CEReactions] attribute DOMString type;
+
+  [CEReactions] attribute DOMString text;
+
+  [CEReactions] attribute DOMString referrerPolicy;
+ };
+
+ MathMLElement includes HTMLHyperlinkElementUtils;
\ No newline at end of file

From e1021b1dc53baf53758dd8926a23617608aa2849 Mon Sep 17 00:00:00 2001
From: Brian Kardell <bkardell@igalia.com>
Date: Tue, 11 Feb 2020 10:01:25 -0500
Subject: [PATCH 2/2] edits for linking

---
 index.html | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/index.html b/index.html
index 3a42ce8..bf826ca 100644
--- a/index.html
+++ b/index.html
@@ -291,6 +291,10 @@ <h4>DOM and Javascript</h4>
             <dfn data-cite="CSSOM#elementcssinlinestyle"><code>ElementCSSInlineStyle</code></dfn>
             interface is defined in [[CSSOM]].
           </p>
+          <p>
+            All of the nodes representing <a>MathML Hyperlink Elements</a> in the DOM must implement, and expose to scripts the following <dfn><code>MathMLLinkableElement</code></dfn> interface.
+          </p>
+          <pre class="idl" data-include="webidl/MathMLLinkableElement.idl"></pre>
         </section>
         <section id="text-layout">
           <h4>Text layout</h4>
@@ -320,9 +324,7 @@ <h4>Focus</h4>
               apply, as defined in that specification.
             </p>
             <p>
-              Any MathML elements containing an href attribute are valid links
-              and are focusable.  Their tabindex focus flag
-              must be set unless the user agent normally provides an alternative
+              All <code>MathMLLinkableElement</code> elements are potentially linkable with an <code>href</code> attribute.  Their default tabindex is <code>0</code>.  If their <code>href</code> contains a valid URL, their focus flag must be set unless the user agent normally provides an alternative
               method of keyboard traversal of links, and they appear in the
               sequential focus order.
             </p>
@@ -396,7 +398,6 @@ <h3>Global Attributes</h3>
           <li><a>id</a></li>
           <li><a>class</a></li>
           <li><a><code>style</code></a></li>
-          <li><a><code>href</code></a></li>
           <li><a><code>dir</code></a></li>
           <li><a><code>mathbackground</code></a></li>
           <li><a><code>mathcolor</code></a></li>
@@ -639,6 +640,10 @@ <h3>The Top-Level <code>&lt;math&gt;</code> Element</h3>
           respectively.
         </div>
       </section>
+      <section id="linkable-math-elements">
+        <h3><dfn>MathML Hyperlink Elements</dfn></h3>
+        <p>All <a href="#token-elements">token elements</a> and the <a href="#horizontally-group-sub-expressions-mrow">mrow</a> grouping element are potentially linkable and may contain an <code>href</code> attribute.  They are the MathML equivalents of HTML's <a data-cite="html#the-a-element">a</a> and must follow all of the same criteria laid out for links there.</p>
+      </section>
     </section>
     <section class="normative">
       <h2>Presentation Markup</h2>