sdk/lib/html/dartium/html_dartium.dart

Index: sdk/lib/html/dartium/html_dartium.dart
diff --git a/sdk/lib/html/dartium/html_dartium.dart b/sdk/lib/html/dartium/html_dartium.dart
index a73c6a989ea7887b9c031a84f7003a0d4c3447f5..348a860ad4a756c7c3afe5d8e8540302e93ba0f3 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -40420,9 +40420,8 @@ class _SvgNodeValidator implements NodeValidator {
     }
     // Firefox 37 has issues with creating foreign elements inside a
     // foreignobject tag as SvgElement. We don't want foreignobject contents
-    // anyway, so just remove the whole tree outright. And we can't rely
-    // on IE recognizing the SvgForeignObject type, so go by tagName. Bug 23144
-    if (element is svg.SvgElement && element.tagName == 'foreignObject') {
+    // anyway, so just remove the whole tree outright.
+    if (element is svg.ForeignObjectElement) {
       return false;
     }
     if (element is svg.SvgElement) {