From c30362322c6cfcd03c1f7519610d91554222572e Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Tue, 21 Mar 2017 16:52:35 -0700
Subject: [PATCH] Work around IE/Edge bug with :not([attr]) selectors

---
 test/unit/lazy-upgrade.html | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/unit/lazy-upgrade.html b/test/unit/lazy-upgrade.html
index 8359136f63..1e34db7ce2 100644
--- a/test/unit/lazy-upgrade.html
+++ b/test/unit/lazy-upgrade.html
@@ -43,6 +43,10 @@
 <dom-module id="lazy-child">
   <template>
     <style>
+      /* Work around IE/Edge bug with :not([attr]) */
+      :host([disable-upgrade]) {
+        display: block;
+      }
       :host(:not([disable-upgrade])) {
         display: block;
         border: 2px solid blue;