Bug 1404842 - Implement Element.attachShadow and Element.slot

Tag #1375

48 files changed, 134 insertions, 818 deletions

diff --git a/dom/base/Element.cpp b/dom/base/Element.cpp
index ba5ba9c721..638d6674d2 100644
--- a/dom/base/Element.cpp
+++ b/dom/base/Element.cpp
@@ -1092,9 +1092,78 @@ Element::RemoveFromIdTable()
   }
 }
 
+void
+Element::SetSlot(const nsAString& aName, ErrorResult& aError)
+{
+  aError = SetAttr(kNameSpaceID_None, nsGkAtoms::slot, aName, true);
+}
+
+void
+Element::GetSlot(nsAString& aName)
+{
+  GetAttr(kNameSpaceID_None, nsGkAtoms::slot, aName);
+}
+
+// https://dom.spec.whatwg.org/#dom-element-attachshadow
+already_AddRefed<ShadowRoot>
+Element::AttachShadow(const ShadowRootInit& aInit, ErrorResult& aError)
+{
+  /**
+   * 1. If context object’s namespace is not the HTML namespace,
+   *    then throw a "NotSupportedError" DOMException.
+   */
+  if (!IsHTMLElement()) {
+    aError.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+    return nullptr;
+  }
+
+  /**
+   * 2. If context object’s local name is not
+   *      a valid custom element name, "article", "aside", "blockquote",
+   *      "body", "div", "footer", "h1", "h2", "h3", "h4", "h5", "h6",
+   *      "header", "main" "nav", "p", "section", or "span",
+   *    then throw a "NotSupportedError" DOMException.
+   */
+  nsIAtom* nameAtom = NodeInfo()->NameAtom();
+  if (!(nsContentUtils::IsCustomElementName(nameAtom) ||
+        nameAtom == nsGkAtoms::article ||
+        nameAtom == nsGkAtoms::aside ||
+        nameAtom == nsGkAtoms::blockquote ||
+        nameAtom == nsGkAtoms::body ||
+        nameAtom == nsGkAtoms::div ||
+        nameAtom == nsGkAtoms::footer ||
+        nameAtom == nsGkAtoms::h1 ||
+        nameAtom == nsGkAtoms::h2 ||
+        nameAtom == nsGkAtoms::h3 ||
+        nameAtom == nsGkAtoms::h4 ||
+        nameAtom == nsGkAtoms::h5 ||
+        nameAtom == nsGkAtoms::h6 ||
+        nameAtom == nsGkAtoms::header ||
+        nameAtom == nsGkAtoms::main ||
+        nameAtom == nsGkAtoms::nav ||
+        nameAtom == nsGkAtoms::p ||
+        nameAtom == nsGkAtoms::section ||
+        nameAtom == nsGkAtoms::span)) {
+    aError.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
+    return nullptr;
+  }
+
+  return AttachShadowInternal(aInit.mMode == ShadowRootMode::Closed, aError);
+}
+
 already_AddRefed<ShadowRoot>
 Element::CreateShadowRoot(ErrorResult& aError)
 {
+  return AttachShadowInternal(false, aError);
+}
+
+already_AddRefed<ShadowRoot>
+Element::AttachShadowInternal(bool aClosed, ErrorResult& aError)
+{
+  /**
+   * 3. If context object is a shadow host, then throw
+   *    an "InvalidStateError" DOMException.
+   */
   if (GetShadowRoot()) {
     aError.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);
     return nullptr;
@@ -1131,11 +1200,19 @@ Element::CreateShadowRoot(ErrorResult& aError)
   // Calling SetPrototypeBinding takes ownership of protoBinding.
   docInfo->SetPrototypeBinding(NS_LITERAL_CSTRING("shadowroot"), protoBinding);
 
-  RefPtr<ShadowRoot> shadowRoot = new ShadowRoot(this, nodeInfo.forget(),
-                                                   protoBinding);
+  /**
+   * 4. Let shadow be a new shadow root whose node document is
+   *    context object’s node document, host is context object,
+   *    and mode is init’s mode.
+   */
+  RefPtr<ShadowRoot> shadowRoot =
+    new ShadowRoot(this, aClosed, nodeInfo.forget(), protoBinding);
 
   shadowRoot->SetIsComposedDocParticipant(IsInComposedDoc());
 
+  /**
+   * 5. Set context object’s shadow root to shadow.
+   */
   SetShadowRoot(shadowRoot);
 
   // xblBinding takes ownership of docInfo.
@@ -1145,6 +1222,9 @@ Element::CreateShadowRoot(ErrorResult& aError)
 
   SetXBLBinding(xblBinding);
 
+  /**
+   * 6. Return shadow.
+   */
   return shadowRoot.forget();
 }
 
diff --git a/dom/base/Element.h b/dom/base/Element.h
index 88f416be78..6169fbdab9 100644
--- a/dom/base/Element.h
+++ b/dom/base/Element.h
@@ -471,6 +471,9 @@ protected:
     mState &= ~aStates;
   }
 
+  already_AddRefed<ShadowRoot> AttachShadowInternal(bool aClosed,
+                                                    ErrorResult& aError);
+
 private:
   // Need to allow the ESM, nsGlobalWindow, and the focus manager to
   // set our state
@@ -921,6 +924,13 @@ public:
   already_AddRefed<DOMRectList> GetClientRects();
   already_AddRefed<DOMRect> GetBoundingClientRect();
 
+  // Shadow DOM v1
+  already_AddRefed<ShadowRoot> AttachShadow(const ShadowRootInit& aInit,
+                                            ErrorResult& aError);
+  void SetSlot(const nsAString& aName, ErrorResult& aError);
+  void GetSlot(nsAString& aName);
+
+  // [deprecated] Shadow DOM v0
   already_AddRefed<ShadowRoot> CreateShadowRoot(ErrorResult& aError);
   already_AddRefed<DestinationInsertionPointList> GetDestinationInsertionPoints();
 
diff --git a/dom/base/ShadowRoot.cpp b/dom/base/ShadowRoot.cpp
index 5f61b1f4dc..e00bb69d83 100644
--- a/dom/base/ShadowRoot.cpp
+++ b/dom/base/ShadowRoot.cpp
@@ -51,7 +51,7 @@ NS_INTERFACE_MAP_END_INHERITING(DocumentFragment)
 NS_IMPL_ADDREF_INHERITED(ShadowRoot, DocumentFragment)
 NS_IMPL_RELEASE_INHERITED(ShadowRoot, DocumentFragment)
 
-ShadowRoot::ShadowRoot(Element* aElement,
+ShadowRoot::ShadowRoot(Element* aElement, bool aClosed,
                        already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
                        nsXBLPrototypeBinding* aProtoBinding)
   : DocumentFragment(aNodeInfo)
@@ -60,6 +60,7 @@ ShadowRoot::ShadowRoot(Element* aElement,
   , mIsComposedDocParticipant(false)
 {
   SetHost(aElement);
+  mMode = aClosed ? ShadowRootMode::Closed : ShadowRootMode::Open;
 
   // Nodes in a shadow tree should never store a value
   // in the subtree root pointer, nodes in the shadow tree
diff --git a/dom/base/ShadowRoot.h b/dom/base/ShadowRoot.h
index 42423c92e3..f061735e2a 100644
--- a/dom/base/ShadowRoot.h
+++ b/dom/base/ShadowRoot.h
@@ -41,10 +41,18 @@ public:
   NS_DECL_NSIMUTATIONOBSERVER_CONTENTINSERTED
   NS_DECL_NSIMUTATIONOBSERVER_CONTENTREMOVED
 
-  ShadowRoot(Element* aElement,
+  ShadowRoot(Element* aElement, bool aClosed,
              already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo,
              nsXBLPrototypeBinding* aProtoBinding);
 
+  // Shadow DOM v1
+  Element* Host();
+  ShadowRootMode Mode()
+  {
+    return mMode;
+  }
+
+  // [deprecated] Shadow DOM v0
   void AddToIdTable(Element* aElement, nsIAtom* aId);
   void RemoveFromIdTable(Element* aElement, nsIAtom* aId);
   void InsertSheet(StyleSheet* aSheet, nsIContent* aLinkingContent);
@@ -121,7 +129,6 @@ public:
     GetElementsByClassName(const nsAString& aClasses);
   void GetInnerHTML(nsAString& aInnerHTML);
   void SetInnerHTML(const nsAString& aInnerHTML, ErrorResult& aError);
-  Element* Host();
   void StyleSheetChanged();
 
   bool IsComposedDocParticipant() { return mIsComposedDocParticipant; }
@@ -133,6 +140,8 @@ public:
 protected:
   virtual ~ShadowRoot();
 
+  ShadowRootMode mMode;
+
   // An array of content insertion points that are a descendant of the ShadowRoot
   // sorted in tree order. Insertion points are responsible for notifying
   // the ShadowRoot when they are removed or added as a descendant. The insertion
diff --git a/dom/webidl/Element.webidl b/dom/webidl/Element.webidl
index 7fc59d614a..ddc5484421 100644
--- a/dom/webidl/Element.webidl
+++ b/dom/webidl/Element.webidl
@@ -228,16 +228,28 @@ partial interface Element {
   NodeList  querySelectorAll(DOMString selectors);
 };
 
-// http://w3c.github.io/webcomponents/spec/shadow/#extensions-to-element-interface
+// https://dom.spec.whatwg.org/#dictdef-shadowrootinit
+dictionary ShadowRootInit {
+  required ShadowRootMode mode;
+};
+
+// https://dom.spec.whatwg.org/#element
 partial interface Element {
-  [Throws,Func="nsDocument::IsWebComponentsEnabled"]
-  ShadowRoot createShadowRoot();
-  [Func="nsDocument::IsWebComponentsEnabled"]
-  NodeList getDestinationInsertionPoints();
+  // Shadow DOM v1
+  [Throws, Pref="nsDocument::IsWebComponentsEnabled"]
+  ShadowRoot attachShadow(ShadowRootInit shadowRootInitDict);
   [Func="nsDocument::IsWebComponentsEnabled"]
   readonly attribute ShadowRoot? shadowRoot;
   [Pref="nsDocument::IsWebComponentsEnabled"]
   readonly attribute HTMLSlotElement? assignedSlot;
+  [CEReactions, Unscopable, SetterThrows, Pref="nsDocument::IsWebComponentsEnabled"]
+           attribute DOMString slot;
+
+  // [deprecated] Shadow DOM v0
+  [Throws, Pref="nsDocument::IsWebComponentsEnabled"]
+  ShadowRoot createShadowRoot();
+  [Pref="nsDocument::IsWebComponentsEnabled"]
+  NodeList getDestinationInsertionPoints();
 };
 
 Element implements ChildNode;
diff --git a/dom/webidl/ShadowRoot.webidl b/dom/webidl/ShadowRoot.webidl
index 90e6b64676..47e6cf5ec5 100644
--- a/dom/webidl/ShadowRoot.webidl
+++ b/dom/webidl/ShadowRoot.webidl
@@ -10,16 +10,27 @@
  * liability, trademark and document use rules apply.
  */
 
+// https://dom.spec.whatwg.org/#enumdef-shadowrootmode
+enum ShadowRootMode {
+  "open",
+  "closed"
+};
+
+// https://dom.spec.whatwg.org/#shadowroot
 [Func="nsDocument::IsWebComponentsEnabled"]
 interface ShadowRoot : DocumentFragment
 {
+  // Shadow DOM v1
+  readonly attribute ShadowRootMode mode;
+  readonly attribute Element host;
+
+  // [deprecated] Shadow DOM v0
   Element? getElementById(DOMString elementId);
   HTMLCollection getElementsByTagName(DOMString localName);
   HTMLCollection getElementsByTagNameNS(DOMString? namespace, DOMString localName);
   HTMLCollection getElementsByClassName(DOMString classNames);
   [CEReactions, SetterThrows, TreatNullAs=EmptyString]
   attribute DOMString innerHTML;
-  readonly attribute Element host;
   attribute boolean applyAuthorStyles;
   readonly attribute StyleSheetList styleSheets;
 };
diff --git a/testing/web-platform/meta/shadow-dom/Document-prototype-adoptNode.html.ini b/testing/web-platform/meta/shadow-dom/Document-prototype-adoptNode.html.ini
deleted file mode 100644
index 830ac82245..0000000000
--- a/testing/web-platform/meta/shadow-dom/Document-prototype-adoptNode.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[Document-prototype-adoptNode.html]
-  type: testharness
-  [adoptNode on a shadow root in open mode must throw a HierarchyRequestError]
-    expected: FAIL
-
-  [adoptNode on a shadow root in closed mode must throw a HierarchyRequestError]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/Document-prototype-importNode.html.ini b/testing/web-platform/meta/shadow-dom/Document-prototype-importNode.html.ini
deleted file mode 100644
index 0ca7987cf4..0000000000
--- a/testing/web-platform/meta/shadow-dom/Document-prototype-importNode.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[Document-prototype-importNode.html]
-  type: testharness
-  [importNode on a shadow root in open mode must throw a NotSupportedError]
-    expected: FAIL
-
-  [importNode on a shadow root in closed mode must throw a NotSupportedError]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/Element-interface-attachShadow.html.ini b/testing/web-platform/meta/shadow-dom/Element-interface-attachShadow.html.ini
deleted file mode 100644
index b9df3f236c..0000000000
--- a/testing/web-platform/meta/shadow-dom/Element-interface-attachShadow.html.ini
+++ /dev/null
@@ -1,14 +0,0 @@
-[Element-interface-attachShadow.html]
-  type: testharness
-  [Check the existence of Element.attachShadow]
-    expected: FAIL
-
-  [Element.attachShadow must create an instance of ShadowRoot]
-    expected: FAIL
-
-  [Element.attachShadow must throw a InvalidStateError if the context object already hosts a shadow tree]
-    expected: FAIL
-
-  [Element.attachShadow must throw a NotSupportedError for button, details, input, marquee, meter, progress, select, textarea, and keygen elements]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/scroll-to-the-fragment-in-shadow-tree.html.ini b/testing/web-platform/meta/shadow-dom/scroll-to-the-fragment-in-shadow-tree.html.ini
deleted file mode 100644
index bdcb1e0e12..0000000000
--- a/testing/web-platform/meta/shadow-dom/scroll-to-the-fragment-in-shadow-tree.html.ini
+++ /dev/null
@@ -1,26 +0,0 @@
-[scroll-to-the-fragment-in-shadow-tree.html]
-  type: testharness
-  [The user agent should not scroll to an element with an ID exactly equal to the decoded fragid in an open shadow tree]
-    expected: FAIL
-
-  [The user agent should not scroll to an element with an ID exactly equal to the decoded fragid in a closed shadow tree]
-    expected: FAIL
-
-  [The user agent should not scroll to an anchor element with a name attribute exactly equal to the decoded fragid in an open shadow tree]
-    expected: FAIL
-
-  [The user agent should not scroll to an anchor element with a name attribute exactly equal to the decoded fragid in a closed shadow tree]
-    expected: FAIL
-
-  [The user agent should scroll to an element with an ID exactly equal to the decoded fragid in the document tree even if there was another element with the same ID inside an open shadow tree earlier in tree order]
-    expected: FAIL
-
-  [The user agent should scroll to an element with an ID exactly equal to the decoded fragid in the document tree even if there was another element with the same ID inside a closed shadow tree earlier in tree order]
-    expected: FAIL
-
-  [The user agent should scroll to an anchor element with a name attribute exactly equal to the decoded fragid in the document tree even if there was another element with the same ID inside an open shadow tree earlier in tree order]
-    expected: FAIL
-
-  [The user agent should scroll to an anchor element with a name attribute exactly equal to the decoded fragid in the document tree even if there was another element with the same ID inside a closed shadow tree earlier in tree order]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/extensions-to-element-interface/methods/test-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/extensions-to-element-interface/methods/test-001.html.ini
deleted file mode 100644
index 5b634b0f2a..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/extensions-to-element-interface/methods/test-001.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-001.html]
-  type: testharness
-  [A_10_02_02_01_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/extensions-to-element-interface/methods/test-002.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/extensions-to-element-interface/methods/test-002.html.ini
deleted file mode 100644
index 2d6ef002d0..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/extensions-to-element-interface/methods/test-002.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-002.html]
-  type: testharness
-  [A_10_02_02_02_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-009.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-009.html.ini
deleted file mode 100644
index 8f7d063c5d..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-009.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-009.html]
-  type: testharness
-  [A_10_01_01_04_01_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-010.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-010.html.ini
deleted file mode 100644
index ec74acf73a..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-010.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[test-010.html]
-  type: testharness
-  [A_10_01_01_04_02_T01_01]
-    expected: FAIL
-
-  [A_10_01_01_04_02_T01_02]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-011.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-011.html.ini
deleted file mode 100644
index a432c4eb24..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-011.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[test-011.html]
-  type: testharness
-  [A_10_01_01_05_01_T01]
-    expected: FAIL
-
-  [A_10_01_01_05_01_T02]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-012.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-012.html.ini
deleted file mode 100644
index 6f557d9e19..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-012.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-012.html]
-  type: testharness
-  [A_10_01_01_06_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-013.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-013.html.ini
deleted file mode 100644
index 2ebe02cf03..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-attributes/test-013.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-013.html]
-  type: testharness
-  [A_10_01_01_07_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-methods/test-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-methods/test-001.html.ini
deleted file mode 100644
index 20eebc9a82..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/elements-and-dom-objects/shadowroot-object/shadowroot-methods/test-001.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[test-001.html]
-  type: testharness
-  [A_10_01_02_01_T01]
-    expected: FAIL
-
-  [A_10_01_02_01_T02]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/events/event-dispatch/test-002.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/events/event-dispatch/test-002.html.ini
deleted file mode 100644
index 3c43986e95..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/events/event-dispatch/test-002.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-002.html]
-  type: testharness
-  [A_05_05_02_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/events/event-retargeting/test-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/events/event-retargeting/test-001.html.ini
deleted file mode 100644
index 47d44deea5..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/events/event-retargeting/test-001.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[test-001.html]
-  type: testharness
-  [A_05_01_01_T1]
-    expected: FAIL
-
-  [A_05_01_01_T2]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/events/event-retargeting/test-003.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/events/event-retargeting/test-003.html.ini
deleted file mode 100644
index 8bbb1b71e2..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/events/event-retargeting/test-003.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-003.html]
-  type: testharness
-  [A_05_01_03_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-001.html.ini
deleted file mode 100644
index 891b6d3489..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-001.html.ini
+++ /dev/null
@@ -1,20 +0,0 @@
-[test-001.html]
-  type: testharness
-  [A_05_03_01_T01]
-    expected: FAIL
-
-  [A_05_03_01_T02]
-    expected: FAIL
-
-  [A_05_03_01_T03]
-    expected: FAIL
-
-  [A_05_03_01_T04]
-    expected: FAIL
-
-  [A_05_03_01_T05]
-    expected: FAIL
-
-  [A_05_03_01_T06]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-002.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-002.html.ini
deleted file mode 100644
index c55148ccc4..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-002.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-002.html]
-  type: testharness
-  [A_05_03_02_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-003.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-003.html.ini
deleted file mode 100644
index c6a45e93a8..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-focus-events/test-003.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-003.html]
-  type: testharness
-  [A_05_03_03_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-relatedtarget/test-003.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-relatedtarget/test-003.html.ini
deleted file mode 100644
index 1c1377023b..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/events/retargeting-relatedtarget/test-003.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-003.html]
-  type: testharness
-  [A_05_02_03_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/html-elements-in-shadow-trees/html-forms/test-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/html-elements-in-shadow-trees/html-forms/test-001.html.ini
deleted file mode 100644
index fbdf5237ad..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/html-elements-in-shadow-trees/html-forms/test-001.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[test-001.html]
-  type: testharness
-  [A_08_02_01_T01]
-    expected: FAIL
-
-  [A_08_02_01_T02]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/html-elements-in-shadow-trees/html-forms/test-002.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/html-elements-in-shadow-trees/html-forms/test-002.html.ini
deleted file mode 100644
index 4eb48c20d4..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/html-elements-in-shadow-trees/html-forms/test-002.html.ini
+++ /dev/null
@@ -1,11 +0,0 @@
-[test-002.html]
-  type: testharness
-  [A_08_02_02_T01]
-    expected: FAIL
-
-  [A_08_02_02_T02]
-    expected: FAIL
-
-  [A_08_02_02_T03]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/nested-shadow-trees/nested_tree_reftest.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/nested-shadow-trees/nested_tree_reftest.html.ini
deleted file mode 100644
index 5885c67284..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/nested-shadow-trees/nested_tree_reftest.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[nested_tree_reftest.html]
-  type: reftest
-  expected: FAIL
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/shadow-root-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/shadow-root-001.html.ini
deleted file mode 100644
index dc0596145a..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/shadow-root-001.html.ini
+++ /dev/null
@@ -1,3 +0,0 @@
-[shadow-root-001.html]
-  type: reftest
-  expected: FAIL
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/dom-tree-accessors-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/dom-tree-accessors-001.html.ini
deleted file mode 100644
index 9447e394a6..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/dom-tree-accessors-001.html.ini
+++ /dev/null
@@ -1,44 +0,0 @@
-[dom-tree-accessors-001.html]
-  type: testharness
-  [<head> and <body> in a shadow tree should not be accessible from owner document's "head" and "body" properties, respectively.]
-    expected: FAIL
-
-  [The content of title element in a shadow tree should not be accessible from owner document's "title" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's "images" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's "embeds" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's "plugins" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's "links" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's "forms" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's "scripts" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's getElementsByName() method.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's "anchors" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's "all" attribute.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's getElementsByTagName() method.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's getElementsByTagNameNS() method.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's getElementById() method.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/dom-tree-accessors-002.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/dom-tree-accessors-002.html.ini
deleted file mode 100644
index 485b129a1f..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/dom-tree-accessors-002.html.ini
+++ /dev/null
@@ -1,11 +0,0 @@
-[dom-tree-accessors-002.html]
-  type: testharness
-  [Elements in a shadow tree should be accessible via shadow root's querySelectorAll() DOM tree accessor.]
-    expected: FAIL
-
-  [Elements with a specific class in a shadow tree should be accessible viashadow root's querySelectorAll() DOM tree accessor.]
-    expected: FAIL
-
-  [Elements in a shadow tree should be accessible via shadow root's getElementById() DOM tree accessor.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/ownerdocument-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/ownerdocument-001.html.ini
deleted file mode 100644
index f2caee337e..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/ownerdocument-001.html.ini
+++ /dev/null
@@ -1,20 +0,0 @@
-[ownerdocument-001.html]
-  type: testharness
-  [ownerDocument property of a shadow root should be the document of the shadow host, regardless of the location of the shadow host.]
-    expected: FAIL
-
-  [ownerDocument property of elements in a shadow tree should match the document of the shadow host, regardless of the element's location in a shadow tree.]
-    expected: FAIL
-
-  [Elements added to a shadow tree should automatically get a valid ownerDocument.]
-    expected: FAIL
-
-  [ownerDocument property of an element in a shadow tree should be the document of the shadow host, even if the host element is created from another document.]
-    expected: FAIL
-
-  [All children nodes of a shadow root get a valid ownerDocument when added to a shadow tree.]
-    expected: FAIL
-
-  [ownerDocument property of a node should remain the same, even if its child is adopted into a shadow tree.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/ownerdocument-002.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/ownerdocument-002.html.ini
deleted file mode 100644
index 986aa9d030..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/ownerdocument-002.html.ini
+++ /dev/null
@@ -1,53 +0,0 @@
-[ownerdocument-002.html]
-  type: testharness
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "article" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "aside" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "blockquote" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "body" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "div" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "footer" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "h1" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "h2" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "h3" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "h4" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "h5" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "h6" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "header" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "nav" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "p" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "section" element.]
-    expected: FAIL
-
-  [ownerDocument property of any elements in a shadow tree should match the document of the shadow host, when the host is a "span" element.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/selectors-api-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/selectors-api-001.html.ini
deleted file mode 100644
index 6f69dcd117..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/selectors-api-001.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[selectors-api-001.html]
-  type: testharness
-  [Elements in a shadow tree should not be accessible from owner document's querySelector() method.]
-    expected: FAIL
-
-  [Elements in a shadow tree should not be accessible from owner document's querySelectorAll() method.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/selectors-api-002.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/selectors-api-002.html.ini
deleted file mode 100644
index fbf20127e5..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/selectors-api-002.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[selectors-api-002.html]
-  type: testharness
-  [Elements in a shadow tree should be accessible from shadow root's querySelector() method.]
-    expected: FAIL
-
-  [Elements in a shadow tree should be accessible from shadow root's querySelectorAll() method.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/shadow-root-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/shadow-root-001.html.ini
deleted file mode 100644
index e432d7ccf7..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/shadow-root-001.html.ini
+++ /dev/null
@@ -1,14 +0,0 @@
-[shadow-root-001.html]
-  type: testharness
-  [The parentNode attribute of a shadow root must always return null.]
-    expected: FAIL
-
-  [The parentElement attribute of a shadow root must always return null.]
-    expected: FAIL
-
-  [The parentNode attribute of a shadow root must always return null, even if the shadow root is nested inside another shadow root.]
-    expected: FAIL
-
-  [The parentElement attribute of a shadow root must always return null, even if the shadow root is nested inside another shadow root.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-005.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-005.html.ini
deleted file mode 100644
index 7d0423c0d0..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-005.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[test-005.html]
-  type: testharness
-  [A_04_01_05_T02]
-    expected: FAIL
-
-  [A_04_01_05_T01]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html.ini
index 53b7bd49b5..97b9fd544a 100644
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html.ini
+++ b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-007.html.ini
@@ -1,8 +1,5 @@
 [test-007.html]
   type: testharness
-  [A_04_01_07_T01]
-    expected: FAIL
-
   [A_04_01_07_T02]
     expected: FAIL
 
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-009.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-009.html.ini
deleted file mode 100644
index 9071f887fd..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-009.html.ini
+++ /dev/null
@@ -1,44 +0,0 @@
-[test-009.html]
-  type: testharness
-  [A_04_01_09_T12]
-    expected: FAIL
-
-  [A_04_01_09_T01]
-    expected: FAIL
-
-  [A_04_01_09_T03]
-    expected: FAIL
-
-  [A_04_01_09_T05]
-    expected: FAIL
-
-  [A_04_01_09_T06]
-    expected: FAIL
-
-  [A_04_01_09_T07]
-    expected: FAIL
-
-  [A_04_01_09_T08]
-    expected: FAIL
-
-  [A_04_01_09_T09]
-    expected: FAIL
-
-  [A_04_01_09_T10]
-    expected: FAIL
-
-  [A_04_01_09_T11]
-    expected: FAIL
-
-  [A_04_01_09_T13]
-    expected: FAIL
-
-  [A_04_01_09_T14]
-    expected: FAIL
-
-  [A_04_01_09_T15]
-    expected: FAIL
-
-  [A_04_01_09_T16]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-011.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-011.html.ini
deleted file mode 100644
index 97f503d6fe..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/test-011.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[test-011.html]
-  type: testharness
-  [A_04_01_11_T2]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-001.html.ini
deleted file mode 100644
index fd7b39bbbd..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-001.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[window-named-properties-001.html]
-  type: testharness
-  [An iframe element in a shadow tree should not be accessible from window's named properties with its "name" attribute value.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-002.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-002.html.ini
deleted file mode 100644
index fddab58d3d..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-002.html.ini
+++ /dev/null
@@ -1,26 +0,0 @@
-[window-named-properties-002.html]
-  type: testharness
-  ["a" element with name attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["applet" element with name attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["area" element with name attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["embed" element with name attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["form" element with name attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["frameset" element with name attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["img" element with name attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["object" element with name attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-003.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-003.html.ini
deleted file mode 100644
index b9ca5b161e..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/shadow-trees/upper-boundary-encapsulation/window-named-properties-003.html.ini
+++ /dev/null
@@ -1,323 +0,0 @@
-[window-named-properties-003.html]
-  type: testharness
-  ["a" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["abbr" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["address" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["area" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["article" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["aside" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["audio" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["b" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["base" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["bdi" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["bdo" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["blockquote" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["body" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["br" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["button" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["canvas" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["caption" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["cite" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["code" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["col" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["colgroup" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["command" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["datalist" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["dd" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["del" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["details" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["dfn" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["dialog" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["div" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["dl" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["dt" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["em" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["embed" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["fieldset" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["figcaption" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["figure" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["footer" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["form" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["h1" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["h2" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["h3" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["h4" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["h5" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["h6" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["head" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["header" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["hgroup" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["hr" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["html" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["i" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["iframe" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["img" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["input" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["ins" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["kbd" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["keygen" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["label" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["legend" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["li" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["link" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["map" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["mark" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["menu" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["meta" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["meter" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["nav" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["noscript" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["object" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["ol" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["optgroup" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["option" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["output" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["p" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["param" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["pre" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["progress" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["q" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["rp" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["rt" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["ruby" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["s" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["samp" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["script" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["section" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["select" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["small" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["source" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["span" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["strong" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["style" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["sub" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["table" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["tbody" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["td" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["textarea" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["tfoot" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["th" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["thead" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["time" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["title" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["tr" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["track" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["u" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["ul" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["var" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["video" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
-  ["wbr" element with id attribute in a shadow tree should not be accessible from window object's named property.]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/styles/test-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/styles/test-001.html.ini
deleted file mode 100644
index a621f0950a..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/styles/test-001.html.ini
+++ /dev/null
@@ -1,14 +0,0 @@
-[test-001.html]
-  type: testharness
-  [A_06_00_01_T01]
-    expected: FAIL
-
-  [A_06_00_01_T02]
-    expected: FAIL
-
-  [A_06_00_01_T03]
-    expected: FAIL
-
-  [A_06_00_01_T04]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/styles/test-003.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/styles/test-003.html.ini
deleted file mode 100644
index e610bc9b3e..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/styles/test-003.html.ini
+++ /dev/null
@@ -1,11 +0,0 @@
-[test-003.html]
-  type: testharness
-  [A_06_00_03_T01]
-    expected: FAIL
-
-  [A_06_00_03_T02]
-    expected: FAIL
-
-  [A_06_00_03_T03]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/styles/test-008.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/styles/test-008.html.ini
deleted file mode 100644
index 79d7bd1bae..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/styles/test-008.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[test-008.html]
-  type: testharness
-  [A_06_00_09_T01]
-    expected: FAIL
-
-  [A_06_00_09_T02]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/user-interaction/editing/inheritance-of-content-editable-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/user-interaction/editing/inheritance-of-content-editable-001.html.ini
deleted file mode 100644
index b43073a876..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/user-interaction/editing/inheritance-of-content-editable-001.html.ini
+++ /dev/null
@@ -1,11 +0,0 @@
-[inheritance-of-content-editable-001.html]
-  type: testharness
-  [contentEditable of shadow trees must be undefined when contentEditable attribute of shadow host is "true"]
-    expected: FAIL
-
-  [contentEditable of shadow trees must be undefined when contentEditable of shadow host is "false"]
-    expected: FAIL
-
-  [contentEditable of shadow trees must be undefined when contentEditable attribute of shadow host is "inherit"]
-    expected: FAIL
-
diff --git a/testing/web-platform/meta/shadow-dom/untriaged/user-interaction/ranges-and-selections/test-001.html.ini b/testing/web-platform/meta/shadow-dom/untriaged/user-interaction/ranges-and-selections/test-001.html.ini
deleted file mode 100644
index 67493fb912..0000000000
--- a/testing/web-platform/meta/shadow-dom/untriaged/user-interaction/ranges-and-selections/test-001.html.ini
+++ /dev/null
@@ -1,8 +0,0 @@
-[test-001.html]
-  type: testharness
-  [A_07_07_01_T01]
-    expected: FAIL
-
-  [A_07_07_01_T02]
-    expected: FAIL
-