From 0703db8e93b1e44b697f00b91147dfa1af0fe46e Mon Sep 17 00:00:00 2001
From: Naina Raisinghani <nainar@chromium.org>
Date: Tue, 12 Dec 2017 15:55:48 +1100
Subject: [PATCH 1/2] CSSVariableReferenceValue.variable setter rejects invalid
 variable names

---
 css-typed-om/Overview.bs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/css-typed-om/Overview.bs b/css-typed-om/Overview.bs
index 574b20f9..21c0e7b0 100644
--- a/css-typed-om/Overview.bs
+++ b/css-typed-om/Overview.bs
@@ -499,6 +499,18 @@ The <dfn attribute for=CSSUnparsedValue>length</dfn> attribute indicates how man
 
 The <dfn for=CSSUnparsedValue>indexed getter</dfn> retrieves the string fragment or variable reference at the provided index.
 
+<div algorithm="CSSVariableReferenceValue.variable">
+    The <dfn attribute for=CSSVariableReferenceValue>variable</dfn> attribute
+    of a {{CSSVariableReferenceValue}} |this| must, on setting a
+    variable |variable|, perform the following steps:
+
+    1. If |variable| does not start with two dashes (U+002D HYPHEN), [=throw=] a
+        {{TypeError}}, and exit this algorithm.
+
+    2. Otherwise, set |this|’s {{CSSVariableReferenceValue/variable}} internal slot,
+        to |variable|.
+ </div>
+
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From 3ba89f1d97dc4bcce3bb1a09a2d5d70fed0e27d0 Mon Sep 17 00:00:00 2001
From: Tab Atkins Jr <jackalmage@gmail.com>
Date: Mon, 29 Jan 2018 21:17:50 -0800
Subject: [PATCH 2/2] Use the new linking term, and linewrap properly ^_^

---
 css-typed-om/Overview.bs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/css-typed-om/Overview.bs b/css-typed-om/Overview.bs
index 21c0e7b0..07b38a34 100644
--- a/css-typed-om/Overview.bs
+++ b/css-typed-om/Overview.bs
@@ -504,8 +504,9 @@ The <dfn for=CSSUnparsedValue>indexed getter</dfn> retrieves the string fragment
     of a {{CSSVariableReferenceValue}} |this| must, on setting a
     variable |variable|, perform the following steps:
 
-    1. If |variable| does not start with two dashes (U+002D HYPHEN), [=throw=] a
-        {{TypeError}}, and exit this algorithm.
+    1. If |variable| is not a [=custom property name string=], 
+        [=throw=] a {{TypeError}},
+        and exit this algorithm.
 
     2. Otherwise, set |this|’s {{CSSVariableReferenceValue/variable}} internal slot,
         to |variable|.