tor-browser

commit d6440c4cae21406bb00f223c2432ade356eed6e9
parent 83b70e0645d2dfaedd299393da58da55cb7355fe
Author: Alice Boxhall <95208+alice@users.noreply.github.com>
Date:   Tue,  6 Jan 2026 16:13:55 +0000

Bug 1981344 - Implement referenceTarget support for single-element attributes. r=dom-core,credential-management-reviewers,webidl,layout-reviewers,emilio,keithamus,smaug,mtigley

Add referenceTarget support for single element attributes: list, popoverTarget and commandFor.

Differential Revision: https://phabricator.services.mozilla.com/D261365

Diffstat:
M
dom/base/Element.cpp
 | 
61
+++++++++++++++++++++++++++++++++++++++++++++++++------------
M
dom/base/Element.h
 | 
29
+++++++++++++++++++----------
M
dom/base/ShadowRoot.h
 | 
1
+
M
dom/html/HTMLButtonElement.cpp
 | 
7
+++++--
M
dom/html/HTMLInputElement.cpp
 | 
13
+++++++++----
M
dom/html/HTMLInputElement.h
 | 
2
+-
M
dom/html/nsGenericHTMLElement.cpp
 | 
4
++--
M
dom/webidl/HTMLInputElement.webidl
 | 
2
+-
M
testing/web-platform/meta/shadow-dom/reference-target/tentative/commandfor.html.ini
 | 
9
+--------
D
testing/web-platform/meta/shadow-dom/reference-target/tentative/popovertarget.html.ini
 | 
9
---------
M
testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection-idl-setters.html.ini
 | 
810
-------------------------------------------------------------------------------
M
testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection-imperative-setup.html.ini
 | 
3
---
M
testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection.html.ini
 | 
3
---

13 files changed, 88 insertions(+), 865 deletions(-)
diff --git a/dom/base/Element.cpp b/dom/base/Element.cpp
@@ -1579,6 +1579,21 @@ void Element::UnattachShadow() {
   SetShadowRoot(nullptr);
 }
 
+Element* Element::ResolveReferenceTarget() const {
+  if (!StaticPrefs::dom_shadowdom_referenceTarget_enabled()) {
+    return const_cast<Element*>(this);
+  }
+
+  const Element* element = this;
+  ShadowRoot* shadow = GetShadowRoot();
+
+  while (shadow && shadow->HasReferenceTarget()) {
+    element = shadow->GetReferenceTargetElement();
+    shadow = element ? element->GetShadowRoot() : nullptr;
+  }
+  return const_cast<Element*>(element);
+}
+
 void Element::GetAttribute(const nsAString& aName, DOMString& aReturn) {
   const nsAttrValue* val = mAttrs.GetAttr(
       aName,
@@ -1935,29 +1950,51 @@ Element* Element::GetElementByIdInDocOrSubtree(nsAtom* aID) const {
   return nsContentUtils::MatchElementId(SubtreeRoot()->AsContent(), aID);
 }
 
-Element* Element::GetAttrAssociatedElement(nsAtom* aAttr) const {
+Element* Element::GetAttrAssociatedElementInternal(nsAtom* aAttr,
+                                                   bool aForBindings) const {
+  Element* attrEl = nullptr;
+  bool hasExplicitEl = false;
+
   if (const nsExtendedDOMSlots* slots = GetExistingExtendedDOMSlots()) {
-    nsWeakPtr weakAttrEl = slots->mExplicitlySetAttrElementMap.Get(aAttr);
-    if (nsCOMPtr<Element> attrEl = do_QueryReferent(weakAttrEl)) {
-      // If reflectedTarget's explicitly set attr-element |attrEl| is
+    nsWeakPtr weakExplicitEl = slots->mExplicitlySetAttrElementMap.Get(aAttr);
+    if (nsCOMPtr<Element> explicitEl = do_QueryReferent(weakExplicitEl)) {
+      hasExplicitEl = true;
+
+      // If reflectedTarget's explicitly set attr-element |explicitEl| is
       // a descendant of any of element's shadow-including ancestors, then
-      // return |atrEl|.
-      if (HasSharedRoot(attrEl)) {
-        return attrEl;
+      // return |explicitEl|.
+      if (HasSharedRoot(explicitEl)) {
+        attrEl = explicitEl;
       }
+    }
+  }
+
+  if (!hasExplicitEl) {
+    const nsAttrValue* value = GetParsedAttr(aAttr);
+    if (!value) {
       return nullptr;
     }
+
+    MOZ_ASSERT(value->Type() == nsAttrValue::eAtom,
+               "Attribute used for attr associated element must be parsed");
+
+    attrEl = GetElementByIdInDocOrSubtree(value->GetAtomValue());
   }
 
-  const nsAttrValue* value = GetParsedAttr(aAttr);
-  if (!value) {
+  if (!attrEl) {
     return nullptr;
   }
 
-  MOZ_ASSERT(value->Type() == nsAttrValue::eAtom,
-             "Attribute used for attr associated element must be parsed");
+  Element* resolved = attrEl->ResolveReferenceTarget();
+  if (resolved && aForBindings) {
+    return attrEl;
+  }
+
+  return resolved;
+}
 
-  return GetElementByIdInDocOrSubtree(value->GetAtomValue());
+Element* Element::GetAttrAssociatedElementForBindings(nsAtom* aAttr) const {
+  return GetAttrAssociatedElementInternal(aAttr, true);
 }
 
 void Element::GetAttrAssociatedElements(
diff --git a/dom/base/Element.h b/dom/base/Element.h
@@ -260,13 +260,13 @@ class TrustedHTMLOrTrustedScriptOrTrustedScriptURLOrString;
     SetOrRemoveNullableStringAttr(nsGkAtoms::attr, aValue, aRv); \
   }
 
-#define REFLECT_NULLABLE_ELEMENT_ATTR(method, attr)      \
-  Element* Get##method() const {                         \
-    return GetAttrAssociatedElement(nsGkAtoms::attr);    \
-  }                                                      \
-                                                         \
-  void Set##method(Element* aElement) {                  \
-    ExplicitlySetAttrElement(nsGkAtoms::attr, aElement); \
+#define REFLECT_NULLABLE_ELEMENT_ATTR(method, attr)              \
+  Element* Get##method() const {                                 \
+    return GetAttrAssociatedElementForBindings(nsGkAtoms::attr); \
+  }                                                              \
+                                                                 \
+  void Set##method(Element* aElement) {                          \
+    ExplicitlySetAttrElement(nsGkAtoms::attr, aElement);         \
   }
 
 #define REFLECT_NULLABLE_ELEMENTS_ATTR(method, attr)                        \
@@ -1362,10 +1362,17 @@ class Element : public FragmentOrElement {
       const nsAString& aClassNames);
 
   /**
-   * Returns attribute associated element for the given attribute name, see
-   * https://html.spec.whatwg.org/multipage/common-dom-interfaces.html#attr-associated-element
+   * Returns attribute associated element for the given attribute name. See
+   * https://whatpr.org/html/10995/common-microsyntaxes.html#get-the-attr-associated-element
+   */
+  Element* GetAttrAssociatedElementInternal(nsAtom* aAttr,
+                                            bool aForBindings = false) const;
+  /**
+   * The getter for the IDL attribute which reflects the given attribute. See
+   * https://whatpr.org/html/10995/common-dom-interfaces.html#reflecting-content-attributes-in-idl-attributes:reflected-idl-attribute-33
    */
-  Element* GetAttrAssociatedElement(nsAtom* aAttr) const;
+  Element* GetAttrAssociatedElementForBindings(nsAtom* aAttr) const;
+
   void GetAttrAssociatedElements(
       nsAtom* aAttr, bool* aUseCachedValue,
       Nullable<nsTArray<RefPtr<Element>>>& aElements);
@@ -1542,6 +1549,8 @@ class Element : public FragmentOrElement {
     return slots ? slots->mShadowRoot.get() : nullptr;
   }
 
+  Element* ResolveReferenceTarget() const;
+
   const Maybe<float> GetLastRememberedBSize() const {
     const nsExtendedDOMSlots* slots = GetExistingExtendedDOMSlots();
     return slots ? slots->mLastRememberedBSize : Nothing();
diff --git a/dom/base/ShadowRoot.h b/dom/base/ShadowRoot.h
@@ -275,6 +275,7 @@ class ShadowRoot final : public DocumentFragment, public DocumentOrShadowRoot {
 
   void GetHTML(const GetHTMLOptions& aOptions, nsAString& aResult);
 
+  bool HasReferenceTarget() const { return mReferenceTarget; }
   void GetReferenceTarget(nsAString& aResult) const {
     if (!mReferenceTarget) {
       aResult.SetIsVoid(true);
diff --git a/dom/html/HTMLButtonElement.cpp b/dom/html/HTMLButtonElement.cpp
@@ -612,12 +612,15 @@ Element::Command HTMLButtonElement::GetCommand() const {
 }
 
 Element* HTMLButtonElement::GetCommandForElementForBindings() const {
-  return GetCommandForElementInternal();
+  if (StaticPrefs::dom_element_commandfor_enabled()) {
+    return GetAttrAssociatedElementForBindings(nsGkAtoms::commandfor);
+  }
+  return nullptr;
 }
 
 Element* HTMLButtonElement::GetCommandForElementInternal() const {
   if (StaticPrefs::dom_element_commandfor_enabled()) {
-    return GetAttrAssociatedElement(nsGkAtoms::commandfor);
+    return GetAttrAssociatedElementInternal(nsGkAtoms::commandfor);
   }
   return nullptr;
 }
diff --git a/dom/html/HTMLInputElement.cpp b/dom/html/HTMLInputElement.cpp
@@ -1796,8 +1796,12 @@ void HTMLInputElement::SetValue(const nsAString& aValue, CallerType aCallerType,
   }
 }
 
-HTMLDataListElement* HTMLInputElement::GetListForBindings() const {
-  return GetListInternal();
+Element* HTMLInputElement::GetListForBindings() const {
+  HTMLDataListElement* list = GetListInternal();
+  if (!StaticPrefs::dom_shadowdom_referenceTarget_enabled()) {
+    return list;
+  }
+  return Element::FromNodeOrNull(nsContentUtils::Retarget(list, this));
 }
 
 HTMLDataListElement* HTMLInputElement::GetListInternal() const {
@@ -1812,8 +1816,9 @@ HTMLDataListElement* HTMLInputElement::GetListInternal() const {
     return nullptr;
   }
 
-  return HTMLDataListElement::FromNodeOrNull(
-      docOrShadow->GetElementById(dataListId));
+  Element* target = docOrShadow->GetElementById(dataListId);
+  Element* list = target ? target->ResolveReferenceTarget() : nullptr;
+  return HTMLDataListElement::FromNodeOrNull(list);
 }
 
 void HTMLInputElement::SetValue(Decimal aValue, CallerType aCallerType) {
diff --git a/dom/html/HTMLInputElement.h b/dom/html/HTMLInputElement.h
@@ -531,7 +531,7 @@ class HTMLInputElement final : public TextControlElement,
   bool IsDraggingRange() const { return mIsDraggingRange; }
   void SetIndeterminate(bool aValue);
 
-  HTMLDataListElement* GetListForBindings() const;
+  Element* GetListForBindings() const;
   HTMLDataListElement* GetListInternal() const;
 
   void GetMax(nsAString& aValue) { GetHTMLAttr(nsGkAtoms::max, aValue); }
diff --git a/dom/html/nsGenericHTMLElement.cpp b/dom/html/nsGenericHTMLElement.cpp
@@ -2953,13 +2953,13 @@ bool nsGenericHTMLFormControlElementWithState::ParseAttribute(
 mozilla::dom::Element*
 nsGenericHTMLFormControlElementWithState::GetPopoverTargetElementForBindings()
     const {
-  return GetPopoverTargetElementInternal();
+  return GetAttrAssociatedElementForBindings(nsGkAtoms::popovertarget);
 }
 
 mozilla::dom::Element*
 nsGenericHTMLFormControlElementWithState::GetPopoverTargetElementInternal()
     const {
-  return GetAttrAssociatedElement(nsGkAtoms::popovertarget);
+  return GetAttrAssociatedElementInternal(nsGkAtoms::popovertarget);
 }
 
 void nsGenericHTMLFormControlElementWithState::
diff --git a/dom/webidl/HTMLInputElement.webidl b/dom/webidl/HTMLInputElement.webidl
@@ -60,7 +60,7 @@ interface HTMLInputElement : HTMLElement {
   [Pure]
            attribute boolean indeterminate;
   [Pure, BinaryName=listForBindings]
-  readonly attribute HTMLDataListElement? list;
+  readonly attribute Element? list;
   [CEReactions, Pure, SetterThrows]
            attribute DOMString max;
   [CEReactions, Pure, SetterThrows]
diff --git a/testing/web-platform/meta/shadow-dom/reference-target/tentative/commandfor.html.ini b/testing/web-platform/meta/shadow-dom/reference-target/tentative/commandfor.html.ini
@@ -1,9 +1,2 @@
 [commandfor.html]
-  [Shadow root reference target works with commandfor attribute.]
-    expected: FAIL
-
-  [Shadow root reference target works with commandfor attribute via options.]
-    expected: FAIL
-
-  [Shadow root reference target works with .commandForElement property.]
-    expected: FAIL
+  prefs: [dom.element.commandfor.enabled:true]
diff --git a/testing/web-platform/meta/shadow-dom/reference-target/tentative/popovertarget.html.ini b/testing/web-platform/meta/shadow-dom/reference-target/tentative/popovertarget.html.ini
@@ -1,9 +0,0 @@
-[popovertarget.html]
-  [Shadow root reference target works with popovertarget attribute.]
-    expected: FAIL
-
-  [Shadow root reference target works with popovertarget attribute via options.]
-    expected: FAIL
-
-  [Shadow root reference target works with .popoverTargetElement property.]
-    expected: FAIL
diff --git a/testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection-idl-setters.html.ini b/testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection-idl-setters.html.ini
@@ -2,9 +2,6 @@
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -20,15 +17,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -44,15 +35,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -68,15 +53,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -92,15 +71,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -116,15 +89,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -140,15 +107,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -164,15 +125,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -188,15 +143,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -212,15 +161,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -236,15 +179,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -260,15 +197,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -284,15 +215,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -308,15 +233,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -332,15 +251,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [button.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [button.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [button.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -356,15 +269,9 @@
   [button.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [button.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -380,15 +287,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -404,15 +305,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -428,15 +323,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -452,15 +341,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -476,15 +359,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -500,15 +377,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -524,15 +395,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -548,15 +413,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -572,15 +431,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -596,15 +449,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -620,15 +467,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -644,15 +485,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -668,15 +503,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -692,15 +521,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [input.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [input.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [input.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -716,15 +539,9 @@
   [input.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [input.popoverTargetElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -743,9 +560,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -764,9 +578,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -785,9 +596,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -806,9 +614,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -827,9 +632,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -848,9 +650,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -869,9 +668,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -890,9 +686,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -911,9 +704,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -932,9 +722,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -953,9 +740,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -974,9 +758,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -995,9 +776,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -1016,9 +794,6 @@
   [meter.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [meter.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [meter.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -1037,9 +812,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -1058,9 +830,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -1079,9 +848,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -1100,9 +866,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -1121,9 +884,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -1142,9 +902,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -1163,9 +920,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -1184,9 +938,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -1205,9 +956,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -1226,9 +974,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -1247,9 +992,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -1268,9 +1010,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -1289,9 +1028,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -1310,9 +1046,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -1331,9 +1064,6 @@
   [output.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [output.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [output.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -1352,9 +1082,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -1373,9 +1100,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -1394,9 +1118,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -1415,9 +1136,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -1436,9 +1154,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -1457,9 +1172,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -1478,9 +1190,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -1499,9 +1208,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -1520,9 +1226,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -1541,9 +1244,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -1562,9 +1262,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -1583,9 +1280,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -1604,9 +1298,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -1625,9 +1316,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -1646,9 +1334,6 @@
   [progress.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [progress.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [progress.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -1667,9 +1352,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -1688,9 +1370,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -1709,9 +1388,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -1730,9 +1406,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -1751,9 +1424,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -1772,9 +1442,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -1793,9 +1460,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -1814,9 +1478,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -1835,9 +1496,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -1856,9 +1514,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -1877,9 +1532,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -1898,9 +1550,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -1919,9 +1568,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -1940,9 +1586,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -1961,9 +1604,6 @@
   [select.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [select.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [select.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -1982,9 +1622,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -2003,9 +1640,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -2024,9 +1658,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -2045,9 +1676,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -2066,9 +1694,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -2087,9 +1712,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -2108,9 +1730,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -2129,9 +1748,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -2150,9 +1766,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -2171,9 +1784,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -2192,9 +1802,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -2213,9 +1820,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -2234,9 +1838,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -2255,9 +1856,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -2276,9 +1874,6 @@
   [textarea.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [textarea.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [textarea.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -2297,9 +1892,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -2318,9 +1910,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -2339,9 +1928,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -2360,9 +1946,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -2381,9 +1964,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -2402,9 +1982,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -2423,9 +2000,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -2444,9 +2018,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -2465,9 +2036,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -2486,9 +2054,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -2507,9 +2072,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -2528,9 +2090,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -2549,9 +2108,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -2570,9 +2126,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -2591,9 +2144,6 @@
   [div.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [div.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [div.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -2612,9 +2162,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -2633,9 +2180,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -2654,9 +2198,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -2675,9 +2216,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -2696,9 +2234,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -2717,9 +2252,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -2738,9 +2270,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -2759,9 +2288,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -2780,9 +2306,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -2801,9 +2324,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -2822,9 +2342,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -2843,9 +2360,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -2864,9 +2378,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -2885,9 +2396,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -2906,9 +2414,6 @@
   [object.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [object.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [object.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -2927,9 +2432,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -2948,9 +2450,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -2969,9 +2468,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -2990,9 +2486,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -3011,9 +2504,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -3032,9 +2522,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -3053,9 +2540,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -3074,9 +2558,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -3095,9 +2576,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -3116,9 +2594,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -3137,9 +2612,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -3158,9 +2630,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -3179,9 +2648,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -3200,9 +2666,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -3221,9 +2684,6 @@
   [label.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [label.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [label.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -3242,9 +2702,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -3263,9 +2720,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -3284,9 +2738,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -3305,9 +2756,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -3326,9 +2774,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -3347,9 +2792,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -3368,9 +2810,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -3389,9 +2828,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -3410,9 +2846,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -3431,9 +2864,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -3452,9 +2882,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -3473,9 +2900,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -3494,9 +2918,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -3515,9 +2936,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -3536,9 +2954,6 @@
   [fieldset.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [fieldset.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [fieldset.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -3557,9 +2972,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -3578,9 +2990,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -3599,9 +3008,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -3620,9 +3026,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -3641,9 +3044,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -3662,9 +3062,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -3683,9 +3080,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -3704,9 +3098,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -3725,9 +3116,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -3746,9 +3134,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -3767,9 +3152,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -3788,9 +3170,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -3809,9 +3188,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -3830,9 +3206,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -3851,9 +3224,6 @@
   [legend.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [legend.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [legend.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -3872,9 +3242,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -3893,9 +3260,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -3914,9 +3278,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -3935,9 +3296,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -3956,9 +3314,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -3977,9 +3332,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -3998,9 +3350,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -4019,9 +3368,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -4040,9 +3386,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -4061,9 +3404,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -4082,9 +3422,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -4103,9 +3440,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -4124,9 +3458,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -4145,9 +3476,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -4166,9 +3494,6 @@
   [option.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [option.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [option.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -4187,9 +3512,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -4208,9 +3530,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -4229,9 +3548,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -4250,9 +3566,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -4271,9 +3584,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -4292,9 +3602,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -4313,9 +3620,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -4334,9 +3638,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -4355,9 +3656,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -4376,9 +3674,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -4397,9 +3692,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -4418,9 +3710,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -4439,9 +3728,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -4460,9 +3746,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -4481,9 +3764,6 @@
   [datalist.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [datalist.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [datalist.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -4502,9 +3782,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to button with reference target]
     expected: FAIL
 
@@ -4523,9 +3800,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to input with reference target]
     expected: FAIL
 
@@ -4544,9 +3818,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to meter with reference target]
     expected: FAIL
 
@@ -4565,9 +3836,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to output with reference target]
     expected: FAIL
 
@@ -4586,9 +3854,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to progress with reference target]
     expected: FAIL
 
@@ -4607,9 +3872,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to select with reference target]
     expected: FAIL
 
@@ -4628,9 +3890,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to textarea with reference target]
     expected: FAIL
 
@@ -4649,9 +3908,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to div with reference target]
     expected: FAIL
 
@@ -4670,9 +3926,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to object with reference target]
     expected: FAIL
 
@@ -4691,9 +3944,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to label with reference target]
     expected: FAIL
 
@@ -4712,9 +3962,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to fieldset with reference target]
     expected: FAIL
 
@@ -4733,9 +3980,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to legend with reference target]
     expected: FAIL
 
@@ -4754,9 +3998,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to option with reference target]
     expected: FAIL
 
@@ -4775,9 +4016,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to datalist with reference target]
     expected: FAIL
 
@@ -4796,9 +4034,6 @@
   [form.ariaControlsElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
-  [form.ariaActiveDescendantElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
-
   [form.ariaDescribedByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
 
@@ -4813,48 +4048,3 @@
 
   [form.ariaLabelledByElements has IDL setter behavior ReflectsHostInArray when pointing to form with reference target]
     expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to button with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to input with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to meter with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to output with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to progress with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to select with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to textarea with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to div with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to object with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to label with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to fieldset with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to legend with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to option with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to datalist with reference target]
-    expected: FAIL
-
-  [button.commandForElement has IDL setter behavior ReflectsHost when pointing to form with reference target]
-    expected: FAIL
diff --git a/testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection-imperative-setup.html.ini b/testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection-imperative-setup.html.ini
@@ -2,9 +2,6 @@
   [button.form has reflection behavior ReflectsHostReadOnly when pointing to form with reference target with imperative setup]
     expected: FAIL
 
-  [input.list has reflection behavior ReflectsHostReadOnly when pointing to datalist with reference target with imperative setup]
-    expected: FAIL
-
   [input.form has reflection behavior ReflectsHostReadOnly when pointing to form with reference target with imperative setup]
     expected: FAIL
 
diff --git a/testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection.html.ini b/testing/web-platform/meta/shadow-dom/reference-target/tentative/property-reflection.html.ini
@@ -6,9 +6,6 @@
   [button.form has reflection behavior ReflectsHostReadOnly when pointing to form with reference target]
     expected: FAIL
 
-  [input.list has reflection behavior ReflectsHostReadOnly when pointing to datalist with reference target]
-    expected: FAIL
-
   [input.form has reflection behavior ReflectsHostReadOnly when pointing to form with reference target]
     expected: FAIL