1 files changed, 5 insertions, 3 deletions
diff --git a/layout/reftests/webcomponents/dynamic-insertion-point-distribution-2.html b/layout/reftests/webcomponents/dynamic-insertion-point-distribution-2.html
index 29a850e90..d753af09c 100644
--- a/layout/reftests/webcomponents/dynamic-insertion-point-distribution-2.html
+++ b/layout/reftests/webcomponents/dynamic-insertion-point-distribution-2.html
@@ -5,8 +5,10 @@
   <body>
     <div id="host"></div>
     <script>
-      var host = document.getElementById("host");
-      var root = host.createShadowRoot();
+      var host, root;
+
+      host = document.getElementById("host");
+      root = host.attachShadow({mode: 'open'});
       root.innerHTML = "<span>a</span>";
 
       function tweak() {
@@ -20,7 +22,7 @@
         document.documentElement.removeAttribute("class");
       }
 
-      window.addEventListener("MozReftestInvalidate", tweak, false);
+      window.addEventListener("MozReftestInvalidate", tweak);
     </script>
   </body>
 </html>