From 1b5019444015de5cd76d87b73d1922c97870413b Mon Sep 17 00:00:00 2001
From: Steven Orvell <sorvell@google.com>
Date: Wed, 11 Oct 2017 15:34:12 -0700
Subject: [PATCH] Force literal true` to be set as an attribute with a value of
 empty string.

---
 lib/mixins/properties-changed.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/mixins/properties-changed.html b/lib/mixins/properties-changed.html
index c7bce993ba..4163e5cb51 100644
--- a/lib/mixins/properties-changed.html
+++ b/lib/mixins/properties-changed.html
@@ -394,7 +394,7 @@
           if (!value && value !== '' && value !== 0) {
             node.removeAttribute(attribute);
           } else {
-            node.setAttribute(attribute, value);
+            node.setAttribute(attribute, value === true ? '' : value);
           }
         }