diff --git a/tests/html/html.status b/tests/html/html.status
index c7a25eb0990..d166da2ef70 100644
--- a/tests/html/html.status
+++ b/tests/html/html.status
@@ -54,8 +54,6 @@ documentfragment_test: Pass, Timeout
 [ $runtime == ie9 || $runtime == ie10 || $runtime == safari || $runtime == ff || $runtime == chrome || $runtime == opera ]
 # TODO(vsm): Triage DOM tests.
 htmloptionscollection_test: Fail # Issue 3813.
-shadow_dom_test: Skip # No ShadowDOM support except on tip dartium.
-shadow_dom_layout_test: Skip
 unknownelement_test: Fail # Issue 4189
 
 [ $runtime == dartium || $runtime == chrome || $runtime == ie9 || $runtime == ie10 || $runtime == safari || $runtime == ff || $runtime == opera ]
@@ -92,6 +90,7 @@ measurement_test: Fail, Pass
 messageevent_test: Fail
 mutationobserver_test: Fail
 serialized_script_value_test: Fail
+shadow_dom_layout_test: Fail             # IE10 does not support shadow root.
 storage_test: Fail, Pass
 svgelement_test/additionalConstructors: Fail
 svgelement_test/elementset: Fail
@@ -157,8 +156,7 @@ messageevent_test: Fail
 mutationobserver_test: Fail
 postmessage_structured_test: Skip   # BUG(5685): times out.
 serialized_script_value_test: Fail
-shadow_dom_layout_test: Fail
-shadow_dom_test: Fail
+shadow_dom_layout_test: Fail             # IE9 does not support shadow root.
 storage_test: Fail
 svg_3_test: Fail
 svgelement_test/additionalConstructors: Fail
@@ -176,6 +174,8 @@ xhr_test: Skip              # BUG(4016)
 xhr_cross_origin_test: Fail # Issue 6016.
 
 [ $runtime == safari ]
+# TODO(efortuna): Make our test framework able to separate tests out by browser
+# version.
 # TODO(ahe, efortuna): These tests need to be retriaged now that we're testing
 # with Safari 6.
 audiocontext_test: Crash, Fail # Issue: 7414
@@ -195,10 +195,8 @@ input_element_test/week: Fail, Crash     # Safari does not support this input ty
 fileapi_test: Fail # requestFileSystem not supported in Safari 6.
 datalistelement_test: Fail # HTMLDataListElement not yet supported in Safari.
 contentelement_test: Fail # Safari 6 does not support content element.
-# TODO(efortuna): Make our test framework able to separate tests out by browser
-# version.
-datalistelement_test: Fail # Issue: 7414
 node_test: Skip # Issue 6457
+shadow_dom_layout_test: Fail             # Safari does not support shadow root.
 
 [ $runtime == opera && $system == windows ]
 htmlelement_test: Fail, Pass
@@ -239,6 +237,7 @@ indexeddb_4_test: Fail
 mutationobserver_test: Fail
 performance_api_test: Fail
 serialized_script_value_test: Fail
+shadow_dom_layout_test: Fail             # Opera does not support shadow root.
 svg_3_test: Fail
 svgelement_test/additionalConstructors: Fail
 svgelement2_test: Fail
@@ -277,6 +276,7 @@ input_element_test/month: Fail           # FF does not support this input type.
 input_element_test/time: Fail            # FF does not support this input type.
 input_element_test/week: Fail            # FF does not support this input type.
 input_element_test/range: Fail           # FF does not support this input type.
+shadow_dom_layout_test: Fail             # FF does not support shadow root.
 # Interfaces not implemented: SVGTests, SVGLangSpace, SVGExternalResourcesRequired, SVGStylable
 svg_3_test: Fail
 svgelement_test/additionalConstructors: Fail
diff --git a/tests/html/shadow_dom_layout_test.dart b/tests/html/shadow_dom_layout_test.dart
index ec809ca134a..92999512000 100644
--- a/tests/html/shadow_dom_layout_test.dart
+++ b/tests/html/shadow_dom_layout_test.dart
@@ -20,10 +20,15 @@ main() {
   var greenbox = _colorBox('green', 60, 10);
 
   // assemble DOM
-  var sRoot = new ShadowRoot(div);
-  sRoot.nodes.add(new Element.html('<content select=".foo"></content>'));
-  sRoot.nodes.add(redbox);
-  sRoot.nodes.add(new Element.tag('content'));
+  try {
+    var sRoot = new ShadowRoot(div);
+    sRoot.nodes.add(new Element.html('<content select=".foo"></content>'));
+    sRoot.nodes.add(redbox);
+    sRoot.nodes.add(new Element.tag('content'));
+  catch () {
+    // Shadow Root may not be supported and throw an exception.
+    // Catch and continue to fail the test rather than hang.
+  }
 
   div.nodes.add(bluebox);
   div.nodes.add(greenbox);
diff --git a/tests/html/shadow_dom_test.dart b/tests/html/shadow_dom_test.dart
index 8e9a93209e4..b4cbc57bc1f 100644
--- a/tests/html/shadow_dom_test.dart
+++ b/tests/html/shadow_dom_test.dart
@@ -14,7 +14,7 @@ main() {
 
     var div1, div2, shadowRoot, paragraph1, paragraph2;
 
-    setUp(() {
+    void init() {
       paragraph1 = new ParagraphElement();
       paragraph2 = new ParagraphElement();
       [paragraph1, paragraph2].forEach((p) { p.classes.add('foo');});
@@ -29,14 +29,24 @@ main() {
       div2.nodes.add(paragraph2);
       document.body.nodes.add(div1);
       document.body.nodes.add(div2);
-    });
+    }
+
+    var expectation = ShadowRoot.supported ? returnsNormally : throws;
 
     test("Shadowed nodes aren't visible to queries from outside ShadowDOM", () {
-      expect(queryAll('.foo'), equals([div1, paragraph2]));
+      expect(() {
+        init();
+
+        expect(queryAll('.foo'), equals([div1, paragraph2]));
+      }, expectation);
     });
 
     test('Parent node of a shadow root must be null.', () {
-      expect(shadowRoot.parent, isNull);
+      expect(() {
+        init();
+
+        expect(shadowRoot.parent, isNull);
+      }, expectation);
     });
 
 
@@ -46,7 +56,11 @@ main() {
     // rendering tests.
 
     test('Querying in shadowed fragment respects the shadow boundary.', () {
-      expect(shadowRoot.queryAll('.foo'), equals([paragraph1]));
+      expect(() {
+        init();
+
+        expect(shadowRoot.queryAll('.foo'), equals([paragraph1]));
+      }, expectation);
     });
   });
 }