From 3996046edd1f2cf50ac54dc2e6076226f2aa2474 Mon Sep 17 00:00:00 2001
From: Michael Wasserman <michaelwasserman@users.noreply.github.com>
Date: Wed, 8 Jun 2022 15:42:34 +0000
Subject: [PATCH] Add an outline for initiating multi-screen experiences (#101)

SHA: 4c5b04370b156331eecd3eec52ba13a83d03b218
Reason: push, by @michaelwasserman

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
---
 index.html | 134 +++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 99 insertions(+), 35 deletions(-)

diff --git a/index.html b/index.html
index ac194ef..9d7dd0b 100644
--- a/index.html
+++ b/index.html
@@ -9,7 +9,7 @@
   <meta content="Bikeshed version 37b7e7e68, updated Fri May 27 15:08:11 2022 -0700" name="generator">
   <link href="https://w3c.github.io/window-placement" rel="canonical">
   <link href="logo.svg" rel="icon">
-  <meta content="8df8fb5dc098959109c41d88d4be01e9dbefe48e" name="document-revision">
+  <meta content="4c5b04370b156331eecd3eec52ba13a83d03b218" name="document-revision">
 <style>
 .domintro::before {
     content: 'For web developers (non-normative)';
@@ -609,7 +609,7 @@
   <div class="head">
    <p data-fill-with="logo"><a class="logo" href="https://www.w3.org/"> <img alt="W3C" height="48" src="https://www.w3.org/StyleSheets/TR/2021/logos/W3C" width="72"> </a> </p>
    <h1 class="p-name no-ref" id="title">Multi-Screen Window Placement</h1>
-   <p id="w3c-state"><a href="https://www.w3.org/standards/types#ED">Editor’s Draft</a>, <time class="dt-updated" datetime="2022-06-07">7 June 2022</time></p>
+   <p id="w3c-state"><a href="https://www.w3.org/standards/types#ED">Editor’s Draft</a>, <time class="dt-updated" datetime="2022-06-08">8 June 2022</time></p>
    <details open>
     <summary>More details about this document</summary>
     <div data-fill-with="spec-metadata">
@@ -662,6 +662,7 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
         <li><a href="#usage-overview-screen-details"><span class="secno">1.2.3</span> <span class="content">Request detailed screen information</span></a>
         <li><a href="#usage-overview-place-fullscreen-content-on-a-specific-screen"><span class="secno">1.2.4</span> <span class="content">Place fullscreen content on a specific screen</span></a>
         <li><a href="#usage-overview-place-windows-on-a-specific-screen"><span class="secno">1.2.5</span> <span class="content">Place windows on a specific screen</span></a>
+        <li><a href="#usage-overview-initiate-multi-screen-experiences"><span class="secno">1.2.6</span> <span class="content">Initiate multi-screen experiences</span></a>
        </ol>
      </ol>
     <li>
@@ -693,6 +694,7 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
        <ol class="toc">
         <li><a href="#api-window-getScreenDetails-method"><span class="secno">3.2.1</span> <span class="content"><code class="idl"><span>getScreenDetails()</span></code> method</span></a>
         <li><a href="#api-window-attribute-and-method-definition-changes"><span class="secno">3.2.2</span> <span class="content"><code class="idl"><span>Window</span></code> attribute and method definition changes</span></a>
+        <li><a href="#api-window-open-method-definition-changes"><span class="secno">3.2.3</span> <span class="content"><code class="idl"><span>Window.open()</span></code> method definition changes</span></a>
        </ol>
       <li>
        <a href="#api-screendetails-interface"><span class="secno">3.3</span> <span class="content"><code class="idl"><span>ScreenDetails</span></code> interface</span></a>
@@ -710,7 +712,7 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
       <li>
        <a href="#api-extensions-to-fullscreen-options"><span class="secno">3.5</span> <span class="content">Extensions to <code class="idl"><span>FullscreenOptions</span></code></span></a>
        <ol class="toc">
-        <li><a href="#api-element-requestfullscreen-method-definition-changes"><span class="secno">3.5.1</span> <span class="content"><code class="idl"><span>requestFullscreen</span></code> method definition changes</span></a>
+        <li><a href="#api-element-requestfullscreen-method-definition-changes"><span class="secno">3.5.1</span> <span class="content"><code class="idl"><span>Element.requestFullscreen()</span></code> method definition changes</span></a>
        </ol>
       <li><a href="#api-permission-api-integration"><span class="secno">3.6</span> <span class="content">Permission API Integration</span></a>
       <li><a href="#api-permission-policy-integration"><span class="secno">3.7</span> <span class="content">Permission Policy integration</span></a>
@@ -782,6 +784,8 @@ <h3 class="heading settled" data-level="1.2" id="usage-overview"><span class="se
      <p>Show an element fullscreen on a specific screen</p>
     <li data-md>
      <p>Place a window on a specific screen</p>
+    <li data-md>
+     <p>Initiate a multi-screen experience from a single transient user activation</p>
    </ol>
    <aside class="example" id="example-a29c921a">
     <a class="self-link" href="#example-a29c921a"></a> 
@@ -865,7 +869,7 @@ <h4 class="heading settled" data-level="1.2.4" id="usage-overview-place-fullscre
 slideshowElement<c- p>.</c->requestFullscreen<c- p>({</c-> screen<c- o>:</c-> screenDetailed <c- p>});</c->
 </pre>
    <h4 class="heading settled" data-level="1.2.5" id="usage-overview-place-windows-on-a-specific-screen"><span class="secno">1.2.5. </span><span class="content">Place windows on a specific screen</span><a class="self-link" href="#usage-overview-place-windows-on-a-specific-screen"></a></h4>
-   <p>Another common multi-screen use cases is to place a window on a specific screen. This can be accomplished by using coordinates provided in the <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed①">ScreenDetailed</a></code> interface with existing <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open">open()</a></code> and <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-moveto" id="ref-for-dom-window-moveto">moveTo()</a></code> methods.</p>
+   <p>Another common multi-screen use case is to place a window on a specific screen. This can be accomplished by using coordinates provided in the <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed①">ScreenDetailed</a></code> interface with existing <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open">open()</a></code> and <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-moveto" id="ref-for-dom-window-moveto">moveTo()</a></code> methods.</p>
 <pre class="language-js highlight"><c- a>function</c-> openCenteredWindow<c- p>(</c->url<c- p>,</c-> screenDetailed<c- p>,</c-> w<c- p>,</c-> h<c- p>)</c-> <c- p>{</c->
   <c- c1>// Compute coordinates centering the window on the target screen.</c->
   <c- a>const</c-> l <c- o>=</c-> screenDetailed<c- p>.</c->left <c- o>+</c-> Math<c- p>.</c->round<c- p>(</c->screenDetailed<c- p>.</c->width <c- o>-</c-> w<c- p>)</c-> <c- o>/</c-> <c- mf>2</c-><c- p>;</c->
@@ -874,6 +878,21 @@ <h4 class="heading settled" data-level="1.2.5" id="usage-overview-place-windows-
   <c- c1>// Open the window with the requested dimensions.</c->
   <c- k>return</c-> window<c- p>.</c->open<c- p>(</c->url<c- p>,</c-> <c- t>'_blank'</c-><c- p>,</c-> <c- sb>`left=</c-><c- si>${</c->l<c- si>}</c-><c- sb>,top=</c-><c- si>${</c->t<c- si>}</c-><c- sb>,width=</c-><c- si>${</c->w<c- si>}</c-><c- sb>,height=</c-><c- si>${</c->h<c- si>}</c-><c- sb>`</c-><c- p>);</c->
 <c- p>}</c->
+</pre>
+   <h4 class="heading settled" data-level="1.2.6" id="usage-overview-initiate-multi-screen-experiences"><span class="secno">1.2.6. </span><span class="content">Initiate multi-screen experiences</span><a class="self-link" href="#usage-overview-initiate-multi-screen-experiences"></a></h4>
+   <p>A commonly requested multi-screen use case is to initiate a compelling multi-screen experience from a single user activation. One specific proposed form is permitting a site to <a href="#usage-overview-place-fullscreen-content-on-a-specific-screen">§ 1.2.4 Place fullscreen content on a specific screen</a> and <a href="#usage-overview-place-windows-on-a-specific-screen">§ 1.2.5 Place windows on a specific screen</a> from a single user gesture. This can be accomplished by first requesting fullscreen on a specific screen of a multi-screen device, and then opening a popup window on another screen of the device, in a single event listener.</p>
+<pre class="language-js highlight">initiateMultiScreenExperienceButton<c- p>.</c->addEventListener<c- p>(</c-><c- t>'click'</c-><c- p>,</c-> <c- k>async</c-> <c- p>()</c-> <c- p>=></c-> <c- p>{</c->
+  <c- c1>// Find the primary screen, show some content fullscreen there.</c->
+  <c- a>const</c-> primaryScreen <c- o>=</c-> screenDetails<c- p>.</c->screens<c- p>.</c->find<c- p>(</c->s <c- p>=></c-> s<c- p>.</c->isPrimary<c- p>);</c->
+  <c- k>await</c-> document<c- p>.</c->documentElement<c- p>.</c->requestFullscreen<c- p>({</c->screen <c- o>:</c-> primaryScreen<c- p>});</c->
+
+  <c- c1>// Find a different screen, fill its available area with a new window.</c->
+  <c- a>const</c-> otherScreen <c- o>=</c-> screenDetails<c- p>.</c->screens<c- p>.</c->find<c- p>(</c->s <c- p>=></c-> s <c- o>!==</c-> primaryScreen<c- p>);</c->
+  window<c- p>.</c->open<c- p>(</c->url<c- p>,</c-> <c- t>'_blank'</c-><c- p>,</c-> <c- sb>`left=</c-><c- si>${</c->otherScreen<c- p>.</c->availLeft<c- si>}</c-><c- sb>,`</c-> <c- o>+</c->
+                             <c- sb>`top=</c-><c- si>${</c->otherScreen<c- p>.</c->availTop<c- si>}</c-><c- sb>,`</c-> <c- o>+</c->
+                             <c- sb>`width=</c-><c- si>${</c->otherScreen<c- p>.</c->availWidth<c- si>}</c-><c- sb>,`</c-> <c- o>+</c->
+                             <c- sb>`height=</c-><c- si>${</c->otherScreen<c- p>.</c->availHeight<c- si>}</c-><c- sb>`</c-><c- p>);</c->
+<c- p>});</c->
 </pre>
    <h2 class="heading settled" data-level="2" id="concepts"><span class="secno">2. </span><span class="content">Concepts</span><a class="self-link" href="#concepts"></a></h2>
    <p>Concepts in this specification build upon those in <a data-link-type="biblio" href="#biblio-cssom-view">[CSSOM-VIEW]</a>, the <a href="https://drafts.csswg.org/cssom-view/">CSSOM-View Editor’s draft</a> dated "15 November 2021", <a data-link-type="biblio" href="#biblio-html">[HTML]</a>, and <a data-link-type="biblio" href="#biblio-fullscreen">[Fullscreen]</a>.</p>
@@ -1057,6 +1076,15 @@ <h4 class="heading settled" data-level="3.2.2" id="api-window-attribute-and-meth
     <li data-md>
      <p><code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open①">open()</a></code> steps must interpret <code>"left"</code> and <code>"top"</code> feature values to be specified relative to the <a data-link-type="dfn" href="#multi-screen-origin" id="ref-for-multi-screen-origin⑨">multi-screen origin</a>.</p>
    </ul>
+   <h4 class="heading settled" data-level="3.2.3" id="api-window-open-method-definition-changes"><span class="secno">3.2.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open②">Window.open()</a></code> method definition changes</span><a class="self-link" href="#api-window-open-method-definition-changes"></a></h4>
+   <p>Instances of <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①①">Window</a></code> are created with an <a href="https://tc39.github.io/ecma262/#sec-object-internal-methods-and-internal-slots">internal slot</a> named <dfn class="dfn-paneled idl-code" data-dfn-for="Window" data-dfn-type="attribute" data-export id="dom-window-targetscreenfullscreen-slot"><code>[[targetScreenFullscreen]]</code></dfn>, which has a data model equivalent to <a href="https://html.spec.whatwg.org/multipage/interaction.html#last-activation-timestamp">last-activation-timestamp</a>. It corresponds to a <code class="idl"><a data-link-type="idl" href="https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp" id="ref-for-dom-domhighrestimestamp">DOMHighResTimeStamp</a></code> value except for two cases: positive infinity indicates that the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①②">Window</a></code> has never been activated, while negative infinity indicates that a <a href="https://html.spec.whatwg.org/multipage/interaction.html#user-activation-gated-apis">user activation-gated API</a> has <a href="https://html.spec.whatwg.org/multipage/interaction.html#consume-user-activation">consumed</a> the last user activation of the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①③">Window</a></code>. The initial value is positive infinity.</p>
+   <p>The <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open③">Window.open()</a></code> method steps, and the steps of methods invoked therein, are updated to optionally:</p>
+   <ol>
+    <li data-md>
+     <p>Waive the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/interaction.html#transient-activation" id="ref-for-transient-activation①">transient activation</a> state requirement when the <a href="https://w3c.github.io/hr-time/#dfn-current-high-resolution-time">current high resolution time</a> of the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global③">relevant global object</a> is greater than or equal to <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑤">this</a>.<code class="idl"><a data-link-type="idl" href="#dom-window-targetscreenfullscreen-slot" id="ref-for-dom-window-targetscreenfullscreen-slot">[[targetScreenFullscreen]]</a></code>, and less than <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑥">this</a>.<code class="idl"><a data-link-type="idl" href="#dom-window-targetscreenfullscreen-slot" id="ref-for-dom-window-targetscreenfullscreen-slot①">[[targetScreenFullscreen]]</a></code> plus the <a data-link-type="dfn">transient activation duration</a>.</p>
+    <li data-md>
+     <p>Set <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑦">this</a>.<code class="idl"><a data-link-type="idl" href="#dom-window-targetscreenfullscreen-slot" id="ref-for-dom-window-targetscreenfullscreen-slot②">[[targetScreenFullscreen]]</a></code> to negative infinity immediately after following the steps to <a href="https://html.spec.whatwg.org/multipage/interaction.html#consume-user-activation">consume user activation</a>.</p>
+   </ol>
    <h3 class="heading settled" data-level="3.3" id="api-screendetails-interface"><span class="secno">3.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#screendetails" id="ref-for-screendetails⑤">ScreenDetails</a></code> interface</span><a class="self-link" href="#api-screendetails-interface"></a></h3>
    <div class="domintro note" role="note">
     <dl>
@@ -1065,7 +1093,7 @@ <h3 class="heading settled" data-level="3.3" id="api-screendetails-interface"><s
       <p>Returns an array of <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed②">ScreenDetailed</a></code> objects that describe each of the screens.</p>
      <dt data-md><var>screenDetails</var> . <code class="idl"><a data-link-type="idl" href="#dom-screendetails-currentscreen" id="ref-for-dom-screendetails-currentscreen">currentScreen</a></code>
      <dd data-md>
-      <p>Returns a <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed③">ScreenDetailed</a></code> object that describes the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen①">current screen</a>. This object describes the same <a data-link-type="dfn" href="#screen" id="ref-for-screen④①">screen</a> as <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①①">Window</a></code>.<code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-screen" id="ref-for-dom-window-screen②">screen</a></code>, but provides a superset of the information.</p>
+      <p>Returns a <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed③">ScreenDetailed</a></code> object that describes the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen①">current screen</a>. This object describes the same <a data-link-type="dfn" href="#screen" id="ref-for-screen④①">screen</a> as <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①④">Window</a></code>.<code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-screen" id="ref-for-dom-window-screen②">screen</a></code>, but provides a superset of the information.</p>
      <dt data-md><var>screenDetails</var> . <code class="idl"><a data-link-type="idl" href="#dom-screendetails-onscreenschange" id="ref-for-dom-screendetails-onscreenschange">onscreenschange</a></code>
      <dd data-md>
       <p>Fired when the set of <a data-link-type="dfn" href="#screen" id="ref-for-screen④②">screens</a> changes; i.e. when a <a data-link-type="dfn" href="#screen" id="ref-for-screen④③">screen</a> is added or removed.</p>
@@ -1115,15 +1143,15 @@ <h4 class="heading settled" data-level="3.3.1" id="api-screendetails-screens-att
     </ol>
    </div>
    <h4 class="heading settled" data-level="3.3.2" id="api-screendetails-currentscreen-attribute"><span class="secno">3.3.2. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-screendetails-currentscreen" id="ref-for-dom-screendetails-currentscreen②">currentScreen</a></code> attribute</span><a class="self-link" href="#api-screendetails-currentscreen-attribute"></a></h4>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetails" data-dfn-type="attribute" data-export id="dom-screendetails-currentscreen"><code>currentScreen</code></dfn> getter steps are to return the <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed⑦">ScreenDetailed</a></code> object in <code class="idl"><a data-link-type="idl" href="#dom-screendetails-screens" id="ref-for-dom-screendetails-screens③">screens</a></code> representing the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen④">current screen</a> of the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①②">Window</a></code> object associated with <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑤">this</a>.</p>
-   <p class="note" role="note"><span>Note:</span> Which exact <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed⑧">ScreenDetailed</a></code> object in <code class="idl"><a data-link-type="idl" href="#dom-screendetails-screens" id="ref-for-dom-screendetails-screens④">screens</a></code> represents the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen⑤">current screen</a> of a <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①③">Window</a></code> is assumed to be defined by operating systems and user agents. This corresponds with <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①④">Window</a></code>.<code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-screen" id="ref-for-dom-window-screen③">screen</a></code>, the canonical screen for a given window, for example the screen with the largest area intersecting the window.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetails" data-dfn-type="attribute" data-export id="dom-screendetails-currentscreen"><code>currentScreen</code></dfn> getter steps are to return the <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed⑦">ScreenDetailed</a></code> object in <code class="idl"><a data-link-type="idl" href="#dom-screendetails-screens" id="ref-for-dom-screendetails-screens③">screens</a></code> representing the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen④">current screen</a> of the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①⑤">Window</a></code> object associated with <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑧">this</a>.</p>
+   <p class="note" role="note"><span>Note:</span> Which exact <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed⑧">ScreenDetailed</a></code> object in <code class="idl"><a data-link-type="idl" href="#dom-screendetails-screens" id="ref-for-dom-screendetails-screens④">screens</a></code> represents the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen⑤">current screen</a> of a <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①⑥">Window</a></code> is assumed to be defined by operating systems and user agents. This corresponds with <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①⑦">Window</a></code>.<code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-screen" id="ref-for-dom-window-screen③">screen</a></code>, the canonical screen for a given window, for example the screen with the largest area intersecting the window.</p>
    <p class="note" role="note"><span>Note:</span> <code class="idl"><a data-link-type="idl" href="#dom-screendetails-currentscreen" id="ref-for-dom-screendetails-currentscreen③">currentScreen</a></code> is guaranteed to be <code>===</code> comparable with one of the entries in <code class="idl"><a data-link-type="idl" href="#dom-screendetails-screens" id="ref-for-dom-screendetails-screens⑤">screens</a></code>, to facilitate such comparisons, e.g. <code>screenDetails.screens.find(s => s !== screenDetails.currentScreen);</code>. That precludes <code class="idl"><a data-link-type="idl" href="#dom-screendetails-currentscreen" id="ref-for-dom-screendetails-currentscreen④">currentScreen</a></code> from being marked <code>[SameObject]</code>. Relatedly, <a class="idl-code" data-link-type="event" href="#eventdef-screendetailed-change" id="ref-for-eventdef-screendetailed-change"><code>change</code></a> event listeners added to <code class="idl"><a data-link-type="idl" href="#dom-screendetails-currentscreen" id="ref-for-dom-screendetails-currentscreen⑤">currentScreen</a></code> will only be notified of changes for that specific <a data-link-type="dfn" href="#screen" id="ref-for-screen④⑧">screen</a>, while <a class="idl-code" data-link-type="event" href="#eventdef-screendetails-currentscreenchange" id="ref-for-eventdef-screendetails-currentscreenchange"><code>currentscreenchange</code></a> event listeners will be notified of changes for whichever <a data-link-type="dfn" href="#screen" id="ref-for-screen④⑨">screen</a> happens to be the window’s <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen⑥">current screen</a>, i.e. after the window moves from one <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⓪">screen</a> to another.</p>
    <h4 class="heading settled" data-level="3.3.3" id="api-screendetails-onscreenschange-attribute"><span class="secno">3.3.3. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-screendetails-onscreenschange" id="ref-for-dom-screendetails-onscreenschange②">onscreenschange</a></code> attribute</span><a class="self-link" href="#api-screendetails-onscreenschange-attribute"></a></h4>
    <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetails" data-dfn-type="attribute" data-export id="dom-screendetails-onscreenschange"><code>onscreenschange</code></dfn> attribute is an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-idl-attributes" id="ref-for-event-handler-idl-attributes①">event handler IDL attribute</a> whose <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-event-type" id="ref-for-event-handler-event-type①">event handler event type</a> is <a class="idl-code" data-link-type="event" href="#eventdef-screendetails-screenschange" id="ref-for-eventdef-screendetails-screenschange"><code>screenschange</code></a>.</p>
-   <p>When the set of <code class="idl"><a data-link-type="idl" href="#dom-screendetails-screens" id="ref-for-dom-screendetails-screens⑥">screens</a></code> of a <code class="idl"><a data-link-type="idl" href="#screendetails" id="ref-for-screendetails⑥">ScreenDetails</a></code> object <var>screenDetails</var> changes, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-global-task" id="ref-for-queue-a-global-task②">queue a global task</a> on the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global③">relevant global object</a> of <var>screenDetails</var> using the <a data-link-type="dfn" href="#window-placement-task-source" id="ref-for-window-placement-task-source②">window placement task source</a> to <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-fire" id="ref-for-concept-event-fire①">fire an event</a> with type <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetails" data-dfn-type="event" data-export id="eventdef-screendetails-screenschange"><code>screenschange</code></dfn> at <var>screenDetails</var>.</p>
+   <p>When the set of <code class="idl"><a data-link-type="idl" href="#dom-screendetails-screens" id="ref-for-dom-screendetails-screens⑥">screens</a></code> of a <code class="idl"><a data-link-type="idl" href="#screendetails" id="ref-for-screendetails⑥">ScreenDetails</a></code> object <var>screenDetails</var> changes, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-global-task" id="ref-for-queue-a-global-task②">queue a global task</a> on the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global④">relevant global object</a> of <var>screenDetails</var> using the <a data-link-type="dfn" href="#window-placement-task-source" id="ref-for-window-placement-task-source②">window placement task source</a> to <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-fire" id="ref-for-concept-event-fire①">fire an event</a> with type <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetails" data-dfn-type="event" data-export id="eventdef-screendetails-screenschange"><code>screenschange</code></dfn> at <var>screenDetails</var>.</p>
    <h4 class="heading settled" data-level="3.3.4" id="api-screendetails-oncurrentscreenchange-attribute"><span class="secno">3.3.4. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-screendetails-oncurrentscreenchange" id="ref-for-dom-screendetails-oncurrentscreenchange②">oncurrentscreenchange</a></code> attribute</span><a class="self-link" href="#api-screendetails-oncurrentscreenchange-attribute"></a></h4>
    <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetails" data-dfn-type="attribute" data-export id="dom-screendetails-oncurrentscreenchange"><code>oncurrentscreenchange</code></dfn> attribute is an <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-idl-attributes" id="ref-for-event-handler-idl-attributes②">event handler IDL attribute</a> whose <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#event-handler-event-type" id="ref-for-event-handler-event-type②">event handler event type</a> is <a class="idl-code" data-link-type="event" href="#eventdef-screendetails-currentscreenchange" id="ref-for-eventdef-screendetails-currentscreenchange①"><code>currentscreenchange</code></a>.</p>
-   <p>When the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen⑦">current screen</a> of a <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①⑤">Window</a></code> <var>window</var> changes from one <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤①">screen</a> to another (e.g. the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①⑥">Window</a></code> has been moved to a different display), or when any <a data-link-type="dfn" href="#screen-basic-observable-properties" id="ref-for-screen-basic-observable-properties①">basic observable property</a> or <a data-link-type="dfn" href="#screen-advanced-observable-properties" id="ref-for-screen-advanced-observable-properties">advanced observable property</a> of the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen⑧">current screen</a> of <var>window</var> changes, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-global-task" id="ref-for-queue-a-global-task③">queue a global task</a> on the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global④">relevant global object</a> of <var>window</var> using the <a data-link-type="dfn" href="#window-placement-task-source" id="ref-for-window-placement-task-source③">window placement task source</a> to <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-fire" id="ref-for-concept-event-fire②">fire an event</a> with type <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetails" data-dfn-type="event" data-export id="eventdef-screendetails-currentscreenchange"><code>currentscreenchange</code></dfn> at the <code class="idl"><a data-link-type="idl" href="#screendetails" id="ref-for-screendetails⑦">ScreenDetails</a></code> object stored in <var>window</var>’s internal slot <code class="idl"><a data-link-type="idl" href="#dom-window-screendetails-slot" id="ref-for-dom-window-screendetails-slot③">[[screenDetails]]</a></code>.</p>
+   <p>When the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen⑦">current screen</a> of a <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①⑧">Window</a></code> <var>window</var> changes from one <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤①">screen</a> to another (e.g. the <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#window" id="ref-for-window①⑨">Window</a></code> has been moved to a different display), or when any <a data-link-type="dfn" href="#screen-basic-observable-properties" id="ref-for-screen-basic-observable-properties①">basic observable property</a> or <a data-link-type="dfn" href="#screen-advanced-observable-properties" id="ref-for-screen-advanced-observable-properties">advanced observable property</a> of the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen⑧">current screen</a> of <var>window</var> changes, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-global-task" id="ref-for-queue-a-global-task③">queue a global task</a> on the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global⑤">relevant global object</a> of <var>window</var> using the <a data-link-type="dfn" href="#window-placement-task-source" id="ref-for-window-placement-task-source③">window placement task source</a> to <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-fire" id="ref-for-concept-event-fire②">fire an event</a> with type <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetails" data-dfn-type="event" data-export id="eventdef-screendetails-currentscreenchange"><code>currentscreenchange</code></dfn> at the <code class="idl"><a data-link-type="idl" href="#screendetails" id="ref-for-screendetails⑦">ScreenDetails</a></code> object stored in <var>window</var>’s internal slot <code class="idl"><a data-link-type="idl" href="#dom-window-screendetails-slot" id="ref-for-dom-window-screendetails-slot③">[[screenDetails]]</a></code>.</p>
    <h3 class="heading settled" data-level="3.4" id="api-screendetailed-interface"><span class="secno">3.4. </span><span class="content">The <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed⑨">ScreenDetailed</a></code> interface</span><a class="self-link" href="#api-screendetailed-interface"></a></h3>
    <p>A <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed①⓪">ScreenDetailed</a></code> object represents a <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤②">screen</a>.</p>
    <div class="domintro note" role="note">
@@ -1166,17 +1194,17 @@ <h3 class="heading settled" data-level="3.4" id="api-screendetailed-interface"><
   <c- b>readonly</c-> <c- b>attribute</c-> <a class="idl-code" data-link-type="interface" href="https://webidl.spec.whatwg.org/#idl-DOMString" id="ref-for-idl-DOMString"><c- b>DOMString</c-></a> <a class="idl-code" data-link-type="attribute" data-readonly data-type="DOMString" href="#dom-screendetailed-label" id="ref-for-dom-screendetailed-label①"><c- g>label</c-></a>;
 };
 </pre>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-availleft"><code>availLeft</code></dfn> getter steps are to return the x-coordinate of the <a data-link-type="dfn" href="#screen-available-screen-position" id="ref-for-screen-available-screen-position①">available screen position</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑥">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤④">screen</a>.</p>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-availtop"><code>availTop</code></dfn> getter steps are to return the y-coordinate of the <a data-link-type="dfn" href="#screen-available-screen-position" id="ref-for-screen-available-screen-position②">available screen position</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑦">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑤">screen</a>.</p>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-left"><code>left</code></dfn> getter steps are to return the x-coordinate of the <a data-link-type="dfn" href="#screen-screen-position" id="ref-for-screen-screen-position⑦">screen position</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑧">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑥">screen</a>.</p>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-top"><code>top</code></dfn> getter steps are to return the y-coordinate of the <a data-link-type="dfn" href="#screen-screen-position" id="ref-for-screen-screen-position⑧">screen position</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑨">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑦">screen</a>.</p>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-isprimary"><code>isPrimary</code></dfn> getter steps are to return true if <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①⓪">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑧">screen</a> is the <a data-link-type="dfn" href="#primary" id="ref-for-primary③">primary</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑨">screen</a>, or false otherwise.</p>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-isinternal"><code>isInternal</code></dfn> getter steps are to return true if <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①①">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥⓪">screen</a> is <a data-link-type="dfn" href="#internal" id="ref-for-internal⑥">internal</a>, or false otherwise.</p>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-devicepixelratio"><code>devicePixelRatio</code></dfn> getter steps are to return the <a data-link-type="dfn" href="#screen-device-pixel-ratio" id="ref-for-screen-device-pixel-ratio②">device pixel ratio</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①②">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥①">screen</a>.</p>
-   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-label"><code>label</code></dfn> getter steps are to return the <a data-link-type="dfn" href="#screen-label" id="ref-for-screen-label③">label</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①③">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥②">screen</a>.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-availleft"><code>availLeft</code></dfn> getter steps are to return the x-coordinate of the <a data-link-type="dfn" href="#screen-available-screen-position" id="ref-for-screen-available-screen-position①">available screen position</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this⑨">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤④">screen</a>.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-availtop"><code>availTop</code></dfn> getter steps are to return the y-coordinate of the <a data-link-type="dfn" href="#screen-available-screen-position" id="ref-for-screen-available-screen-position②">available screen position</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①⓪">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑤">screen</a>.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-left"><code>left</code></dfn> getter steps are to return the x-coordinate of the <a data-link-type="dfn" href="#screen-screen-position" id="ref-for-screen-screen-position⑦">screen position</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①①">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑥">screen</a>.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-top"><code>top</code></dfn> getter steps are to return the y-coordinate of the <a data-link-type="dfn" href="#screen-screen-position" id="ref-for-screen-screen-position⑧">screen position</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①②">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑦">screen</a>.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-isprimary"><code>isPrimary</code></dfn> getter steps are to return true if <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①③">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑧">screen</a> is the <a data-link-type="dfn" href="#primary" id="ref-for-primary③">primary</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑤⑨">screen</a>, or false otherwise.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-isinternal"><code>isInternal</code></dfn> getter steps are to return true if <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①④">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥⓪">screen</a> is <a data-link-type="dfn" href="#internal" id="ref-for-internal⑥">internal</a>, or false otherwise.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-devicepixelratio"><code>devicePixelRatio</code></dfn> getter steps are to return the <a data-link-type="dfn" href="#screen-device-pixel-ratio" id="ref-for-screen-device-pixel-ratio②">device pixel ratio</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①⑤">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥①">screen</a>.</p>
+   <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-label"><code>label</code></dfn> getter steps are to return the <a data-link-type="dfn" href="#screen-label" id="ref-for-screen-label③">label</a> of <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①⑥">this</a> <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥②">screen</a>.</p>
    <h4 class="heading settled" data-level="3.4.1" id="api-screendetailed-onchange-attribute"><span class="secno">3.4.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="#dom-screendetailed-onchange" id="ref-for-dom-screendetailed-onchange">onchange</a></code> attribute</span><a class="self-link" href="#api-screendetailed-onchange-attribute"></a></h4>
    <p>The <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="attribute" data-export id="dom-screendetailed-onchange"><code>onchange</code></dfn> attribute is the <code class="idl"><a data-link-type="idl" href="#dom-screen-onchange" id="ref-for-dom-screen-onchange③">onchange</a></code> attribute inherited from <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#screen" id="ref-for-screen⑥③">Screen</a></code>.</p>
-   <p>When any <a data-link-type="dfn" href="#screen-basic-observable-properties" id="ref-for-screen-basic-observable-properties②">basic observable property</a> or <a data-link-type="dfn" href="#screen-advanced-observable-properties" id="ref-for-screen-advanced-observable-properties①">advanced observable property</a> of a <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥④">screen</a> represented by a <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed①①">ScreenDetailed</a></code> object <var>screenDetailed</var> changes, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-global-task" id="ref-for-queue-a-global-task④">queue a global task</a> on the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global⑤">relevant global object</a> of <var>screenDetailed</var> using the <a data-link-type="dfn" href="#window-placement-task-source" id="ref-for-window-placement-task-source④">window placement task source</a> to <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-fire" id="ref-for-concept-event-fire③">fire an event</a> with type <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="event" data-export id="eventdef-screendetailed-change"><code>change</code></dfn> at <var>screenDetailed</var>.</p>
+   <p>When any <a data-link-type="dfn" href="#screen-basic-observable-properties" id="ref-for-screen-basic-observable-properties②">basic observable property</a> or <a data-link-type="dfn" href="#screen-advanced-observable-properties" id="ref-for-screen-advanced-observable-properties①">advanced observable property</a> of a <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥④">screen</a> represented by a <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed①①">ScreenDetailed</a></code> object <var>screenDetailed</var> changes, <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#queue-a-global-task" id="ref-for-queue-a-global-task④">queue a global task</a> on the <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/webappapis.html#concept-relevant-global" id="ref-for-concept-relevant-global⑥">relevant global object</a> of <var>screenDetailed</var> using the <a data-link-type="dfn" href="#window-placement-task-source" id="ref-for-window-placement-task-source④">window placement task source</a> to <a data-link-type="dfn" href="https://dom.spec.whatwg.org/#concept-event-fire" id="ref-for-concept-event-fire③">fire an event</a> with type <dfn class="dfn-paneled idl-code" data-dfn-for="ScreenDetailed" data-dfn-type="event" data-export id="eventdef-screendetailed-change"><code>change</code></dfn> at <var>screenDetailed</var>.</p>
    <h3 class="heading settled" data-level="3.5" id="api-extensions-to-fullscreen-options"><span class="secno">3.5. </span><span class="content">Extensions to <code class="idl"><a data-link-type="idl" href="https://fullscreen.spec.whatwg.org/#dictdef-fullscreenoptions" id="ref-for-dictdef-fullscreenoptions①">FullscreenOptions</a></code></span><a class="self-link" href="#api-extensions-to-fullscreen-options"></a></h3>
    <div class="domintro note" role="note">
     <dl>
@@ -1190,8 +1218,14 @@ <h3 class="heading settled" data-level="3.5" id="api-extensions-to-fullscreen-op
 };
 </pre>
    <p>The optional <code class="idl"><a data-link-type="idl" href="https://fullscreen.spec.whatwg.org/#dictdef-fullscreenoptions" id="ref-for-dictdef-fullscreenoptions③">FullscreenOptions</a></code> <dfn class="idl-code" data-dfn-for="FullscreenOptions" data-dfn-type="attribute" data-export id="dom-fullscreenoptions-screen①"><code>screen</code><a class="self-link" href="#dom-fullscreenoptions-screen①"></a></dfn> member indicates an application preference to display the element fullscreen on a particular <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥⑥">screen</a>. User agents are always free to honor user preference over that of the application. The default value <code>undefined</code> indicates no application preference.</p>
-   <h4 class="heading settled" data-level="3.5.1" id="api-element-requestfullscreen-method-definition-changes"><span class="secno">3.5.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen" id="ref-for-dom-element-requestfullscreen①">requestFullscreen</a></code> method definition changes</span><a class="self-link" href="#api-element-requestfullscreen-method-definition-changes"></a></h4>
-   <p>The <code class="idl"><a data-link-type="idl" href="https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen" id="ref-for-dom-element-requestfullscreen②">requestFullscreen</a></code> method steps are updated to optionally take <code>options</code>["screen"] into account when moving and resizing <code>pendingDoc</code>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/browsers.html#top-level-browsing-context" id="ref-for-top-level-browsing-context">top-level browsing context</a>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/browsers.html#active-document" id="ref-for-active-document">active document</a>’s viewport. The viewport may be moved to the specified <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥⑦">screen</a> as part of this modified method step.</p>
+   <h4 class="heading settled" data-level="3.5.1" id="api-element-requestfullscreen-method-definition-changes"><span class="secno">3.5.1. </span><span class="content"><code class="idl"><a data-link-type="idl" href="https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen" id="ref-for-dom-element-requestfullscreen①">Element.requestFullscreen()</a></code> method definition changes</span><a class="self-link" href="#api-element-requestfullscreen-method-definition-changes"></a></h4>
+   <p>The <code class="idl"><a data-link-type="idl" href="https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen" id="ref-for-dom-element-requestfullscreen②">Element.requestFullscreen()</a></code> method steps are updated to optionally:</p>
+   <ol>
+    <li data-md>
+     <p>Take <code>options</code>["<code class="idl"><a data-link-type="idl" href="#dom-fullscreenoptions-screen" id="ref-for-dom-fullscreenoptions-screen①">screen</a></code>"] into account when moving and resizing <code>pendingDoc</code>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/browsers.html#top-level-browsing-context" id="ref-for-top-level-browsing-context">top-level browsing context</a>’s <a data-link-type="dfn" href="https://html.spec.whatwg.org/multipage/browsers.html#active-document" id="ref-for-active-document">active document</a>’s viewport. The viewport may be moved to the specified <a data-link-type="dfn" href="#screen" id="ref-for-screen⑥⑦">screen</a> as part of this modified method step.</p>
+    <li data-md>
+     <p>Set the <a data-link-type="dfn" href="https://webidl.spec.whatwg.org/#this" id="ref-for-this①⑦">this</a>.<code class="idl"><a data-link-type="idl" href="#dom-window-targetscreenfullscreen-slot" id="ref-for-dom-window-targetscreenfullscreen-slot③">[[targetScreenFullscreen]]</a></code> internal slot to the <a href="https://w3c.github.io/hr-time/#dfn-current-high-resolution-time">current high resolution time</a> if <code>options</code>["<code class="idl"><a data-link-type="idl" href="#dom-fullscreenoptions-screen" id="ref-for-dom-fullscreenoptions-screen②">screen</a></code>"] specifies a recognized <code class="idl"><a data-link-type="idl" href="#screendetailed" id="ref-for-screendetailed①③">ScreenDetailed</a></code> object with a value of true for <code class="idl"><a data-link-type="idl" href="#dom-screen-isextended" id="ref-for-dom-screen-isextended⑤">isExtended</a></code>.</p>
+   </ol>
    <h3 class="heading settled" data-level="3.6" id="api-permission-api-integration"><span class="secno">3.6. </span><span class="content">Permission API Integration</span><a class="self-link" href="#api-permission-api-integration"></a></h3>
    <p>This specification defines a <a data-link-type="dfn" href="https://w3c.github.io/permissions/#dfn-default-powerful-feature" id="ref-for-dfn-default-powerful-feature">default powerful feature</a> that is identified by the <a data-link-type="dfn" href="https://w3c.github.io/permissions/#dfn-name" id="ref-for-dfn-name">name</a> "<dfn class="dfn-paneled idl-code" data-dfn-for="PermissionName" data-dfn-type="enum-value" data-export id="dom-permissionname-window-placement"><code>window-placement</code></dfn>".</p>
    <p>The <a data-link-type="biblio" href="#biblio-permissions">[permissions]</a> API provides a uniform way for websites to query the state of their permissions.</p>
@@ -1218,9 +1252,9 @@ <h2 class="heading settled" data-level="4" id="security"><span class="secno">4.
    <p>Other points to note:</p>
    <ul>
     <li data-md>
-     <p>Some user agents already do not constrain window placement requests to the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen①①">current screen</a>; they interpret <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open②">open()</a></code> and <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-moveto" id="ref-for-dom-window-moveto②">moveTo()</a></code> coordinates as relative to the <a data-link-type="dfn" href="#multi-screen-origin" id="ref-for-multi-screen-origin①④">multi-screen origin</a>, and honor requests to place windows on screens other than the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen①②">current screen</a>.</p>
+     <p>Some user agents already do not constrain window placement requests to the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen①①">current screen</a>; they interpret <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open④">open()</a></code> and <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-moveto" id="ref-for-dom-window-moveto②">moveTo()</a></code> coordinates as relative to the <a data-link-type="dfn" href="#multi-screen-origin" id="ref-for-multi-screen-origin①④">multi-screen origin</a>, and honor requests to place windows on screens other than the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen①②">current screen</a>.</p>
     <li data-md>
-     <p>Transient user activation is typically already required for <code class="idl"><a data-link-type="idl" href="https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen" id="ref-for-dom-element-requestfullscreen③">requestFullscreen()</a></code> and <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open③">open()</a></code>, but not for <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-moveto" id="ref-for-dom-window-moveto③">moveTo()</a></code>, <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-moveby" id="ref-for-dom-window-moveby">moveBy()</a></code>, <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-resizeto" id="ref-for-dom-window-resizeto">resizeTo()</a></code>, nor <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-resizeby" id="ref-for-dom-window-resizeby">resizeBy()</a></code>.</p>
+     <p>Transient user activation is typically already required for <code class="idl"><a data-link-type="idl" href="https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen" id="ref-for-dom-element-requestfullscreen③">requestFullscreen()</a></code> and <code class="idl"><a data-link-type="idl" href="https://html.spec.whatwg.org/multipage/window-object.html#dom-open" id="ref-for-dom-open⑤">open()</a></code>, but not for <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-moveto" id="ref-for-dom-window-moveto③">moveTo()</a></code>, <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-moveby" id="ref-for-dom-window-moveby">moveBy()</a></code>, <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-resizeto" id="ref-for-dom-window-resizeto">resizeTo()</a></code>, nor <code class="idl"><a data-link-type="idl" href="https://drafts.csswg.org/cssom-view-1/#dom-window-resizeby" id="ref-for-dom-window-resizeby">resizeBy()</a></code>.</p>
     <li data-md>
      <p>Placing content on a screen other than the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen①③">current screen</a> is unlikely to create additional clickjacking risk for users, since the user’s cursor or finger is likely to be co-located with the <a data-link-type="dfn" href="#current-screen" id="ref-for-current-screen①④">current screen</a>, not on a separate screen.</p>
     <li data-md>
@@ -1384,6 +1418,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <li><a href="#dom-screendetails-screens">screens</a><span>, in § 3.3.1</span>
    <li><a href="#eventdef-screendetails-screenschange">screenschange</a><span>, in § 3.3.3</span>
    <li><a href="#secondary">secondary</a><span>, in § 2.8</span>
+   <li><a href="#dom-window-targetscreenfullscreen-slot">[[targetScreenFullscreen]]</a><span>, in § 3.2.3</span>
    <li><a href="#dom-screendetailed-top">top</a><span>, in § 3.4</span>
    <li><a href="#virtual-screen-arrangement">virtual screen arrangement</a><span>, in § 2.5</span>
    <li><a href="#screen-width">width</a><span>, in § 2.3</span>
@@ -1530,10 +1565,16 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <a href="https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen">https://fullscreen.spec.whatwg.org/#dom-element-requestfullscreen</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-dom-element-requestfullscreen">1.2.4. Place fullscreen content on a specific screen</a>
-    <li><a href="#ref-for-dom-element-requestfullscreen①">3.5.1. requestFullscreen method definition changes</a> <a href="#ref-for-dom-element-requestfullscreen②">(2)</a>
+    <li><a href="#ref-for-dom-element-requestfullscreen①">3.5.1. Element.requestFullscreen() method definition changes</a> <a href="#ref-for-dom-element-requestfullscreen②">(2)</a>
     <li><a href="#ref-for-dom-element-requestfullscreen③">4. Security Considerations</a>
    </ul>
   </aside>
+  <aside class="dfn-panel" data-for="term-for-dom-domhighrestimestamp">
+   <a href="https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp">https://www.w3.org/TR/hr-time-2/#dom-domhighrestimestamp</a><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-dom-domhighrestimestamp">3.2.3. Window.open() method definition changes</a>
+   </ul>
+  </aside>
   <aside class="dfn-panel" data-for="term-for-eventhandler">
    <a href="https://html.spec.whatwg.org/multipage/webappapis.html#eventhandler">https://html.spec.whatwg.org/multipage/webappapis.html#eventhandler</a><b>Referenced in:</b>
    <ul>
@@ -1551,15 +1592,16 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
     <li><a href="#ref-for-window⑤">3.2. Extensions to the Window interface</a> <a href="#ref-for-window⑥">(2)</a> <a href="#ref-for-window⑦">(3)</a>
     <li><a href="#ref-for-window⑧">3.2.1. getScreenDetails() method</a>
     <li><a href="#ref-for-window⑨">3.2.2. Window attribute and method definition changes</a> <a href="#ref-for-window①⓪">(2)</a>
-    <li><a href="#ref-for-window①①">3.3. ScreenDetails interface</a>
-    <li><a href="#ref-for-window①②">3.3.2. currentScreen attribute</a> <a href="#ref-for-window①③">(2)</a> <a href="#ref-for-window①④">(3)</a>
-    <li><a href="#ref-for-window①⑤">3.3.4. oncurrentscreenchange attribute</a> <a href="#ref-for-window①⑥">(2)</a>
+    <li><a href="#ref-for-window①①">3.2.3. Window.open() method definition changes</a> <a href="#ref-for-window①②">(2)</a> <a href="#ref-for-window①③">(3)</a>
+    <li><a href="#ref-for-window①④">3.3. ScreenDetails interface</a>
+    <li><a href="#ref-for-window①⑤">3.3.2. currentScreen attribute</a> <a href="#ref-for-window①⑥">(2)</a> <a href="#ref-for-window①⑦">(3)</a>
+    <li><a href="#ref-for-window①⑧">3.3.4. oncurrentscreenchange attribute</a> <a href="#ref-for-window①⑨">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-active-document">
    <a href="https://html.spec.whatwg.org/multipage/browsers.html#active-document">https://html.spec.whatwg.org/multipage/browsers.html#active-document</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-active-document">3.5.1. requestFullscreen method definition changes</a>
+    <li><a href="#ref-for-active-document">3.5.1. Element.requestFullscreen() method definition changes</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-event-handler-event-type">
@@ -1589,7 +1631,8 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-dom-open">1.2.5. Place windows on a specific screen</a>
     <li><a href="#ref-for-dom-open①">3.2.2. Window attribute and method definition changes</a>
-    <li><a href="#ref-for-dom-open②">4. Security Considerations</a> <a href="#ref-for-dom-open③">(2)</a>
+    <li><a href="#ref-for-dom-open②">3.2.3. Window.open() method definition changes</a> <a href="#ref-for-dom-open③">(2)</a>
+    <li><a href="#ref-for-dom-open④">4. Security Considerations</a> <a href="#ref-for-dom-open⑤">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-queue-a-global-task">
@@ -1607,21 +1650,23 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <ul>
     <li><a href="#ref-for-concept-relevant-global">3.1.2. onchange attribute</a>
     <li><a href="#ref-for-concept-relevant-global①">3.2.1. getScreenDetails() method</a> <a href="#ref-for-concept-relevant-global②">(2)</a>
-    <li><a href="#ref-for-concept-relevant-global③">3.3.3. onscreenschange attribute</a>
-    <li><a href="#ref-for-concept-relevant-global④">3.3.4. oncurrentscreenchange attribute</a>
-    <li><a href="#ref-for-concept-relevant-global⑤">3.4.1. onchange attribute</a>
+    <li><a href="#ref-for-concept-relevant-global③">3.2.3. Window.open() method definition changes</a>
+    <li><a href="#ref-for-concept-relevant-global④">3.3.3. onscreenschange attribute</a>
+    <li><a href="#ref-for-concept-relevant-global⑤">3.3.4. oncurrentscreenchange attribute</a>
+    <li><a href="#ref-for-concept-relevant-global⑥">3.4.1. onchange attribute</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-top-level-browsing-context">
    <a href="https://html.spec.whatwg.org/multipage/browsers.html#top-level-browsing-context">https://html.spec.whatwg.org/multipage/browsers.html#top-level-browsing-context</a><b>Referenced in:</b>
    <ul>
-    <li><a href="#ref-for-top-level-browsing-context">3.5.1. requestFullscreen method definition changes</a>
+    <li><a href="#ref-for-top-level-browsing-context">3.5.1. Element.requestFullscreen() method definition changes</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-transient-activation">
    <a href="https://html.spec.whatwg.org/multipage/interaction.html#transient-activation">https://html.spec.whatwg.org/multipage/interaction.html#transient-activation</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-transient-activation">3.2.1. getScreenDetails() method</a>
+    <li><a href="#ref-for-transient-activation①">3.2.3. Window.open() method definition changes</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="term-for-list-append">
@@ -1772,8 +1817,10 @@ <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="c
    <a href="https://webidl.spec.whatwg.org/#this">https://webidl.spec.whatwg.org/#this</a><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-this">3.2.1. getScreenDetails() method</a> <a href="#ref-for-this①">(2)</a> <a href="#ref-for-this②">(3)</a> <a href="#ref-for-this③">(4)</a> <a href="#ref-for-this④">(5)</a>
-    <li><a href="#ref-for-this⑤">3.3.2. currentScreen attribute</a>
-    <li><a href="#ref-for-this⑥">3.4. The ScreenDetailed interface</a> <a href="#ref-for-this⑦">(2)</a> <a href="#ref-for-this⑧">(3)</a> <a href="#ref-for-this⑨">(4)</a> <a href="#ref-for-this①⓪">(5)</a> <a href="#ref-for-this①①">(6)</a> <a href="#ref-for-this①②">(7)</a> <a href="#ref-for-this①③">(8)</a>
+    <li><a href="#ref-for-this⑤">3.2.3. Window.open() method definition changes</a> <a href="#ref-for-this⑥">(2)</a> <a href="#ref-for-this⑦">(3)</a>
+    <li><a href="#ref-for-this⑧">3.3.2. currentScreen attribute</a>
+    <li><a href="#ref-for-this⑨">3.4. The ScreenDetailed interface</a> <a href="#ref-for-this①⓪">(2)</a> <a href="#ref-for-this①①">(3)</a> <a href="#ref-for-this①②">(4)</a> <a href="#ref-for-this①③">(5)</a> <a href="#ref-for-this①④">(6)</a> <a href="#ref-for-this①⑤">(7)</a> <a href="#ref-for-this①⑥">(8)</a>
+    <li><a href="#ref-for-this①⑦">3.5.1. Element.requestFullscreen() method definition changes</a>
    </ul>
   </aside>
   <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span class="content">Terms defined by reference</span><a class="self-link" href="#index-defined-elsewhere"></a></h3>
@@ -1818,6 +1865,11 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
      <li><span class="dfn-paneled" id="term-for-dictdef-fullscreenoptions">FullscreenOptions</span>
      <li><span class="dfn-paneled" id="term-for-dom-element-requestfullscreen">requestFullscreen()</span>
     </ul>
+   <li>
+    <a data-link-type="biblio">[hr-time-2]</a> defines the following terms:
+    <ul>
+     <li><span class="dfn-paneled" id="term-for-dom-domhighrestimestamp">DOMHighResTimeStamp</span>
+    </ul>
    <li>
     <a data-link-type="biblio">[HTML]</a> defines the following terms:
     <ul>
@@ -1889,6 +1941,8 @@ <h3 class="no-num no-ref heading settled" id="normative"><span class="content">N
    <dd>Nick Doty. <a href="https://www.w3.org/TR/fingerprinting-guidance/"><cite>Mitigating Browser Fingerprinting in Web Specifications</cite></a>. 28 March 2019. NOTE. URL: <a href="https://www.w3.org/TR/fingerprinting-guidance/">https://www.w3.org/TR/fingerprinting-guidance/</a>
    <dt id="biblio-fullscreen">[Fullscreen]
    <dd>Philip Jägenstedt. <a href="https://fullscreen.spec.whatwg.org/"><cite>Fullscreen API Standard</cite></a>. Living Standard. URL: <a href="https://fullscreen.spec.whatwg.org/">https://fullscreen.spec.whatwg.org/</a>
+   <dt id="biblio-hr-time-2">[HR-TIME-2]
+   <dd>Ilya Grigorik. <a href="https://www.w3.org/TR/hr-time-2/"><cite>High Resolution Time Level 2</cite></a>. 21 November 2019. REC. URL: <a href="https://www.w3.org/TR/hr-time-2/">https://www.w3.org/TR/hr-time-2/</a>
    <dt id="biblio-html">[HTML]
    <dd>Anne van Kesteren; et al. <a href="https://html.spec.whatwg.org/multipage/"><cite>HTML Standard</cite></a>. Living Standard. URL: <a href="https://html.spec.whatwg.org/multipage/">https://html.spec.whatwg.org/multipage/</a>
    <dt id="biblio-infra">[INFRA]
@@ -1978,7 +2032,7 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-screen⑤②">3.4. The ScreenDetailed interface</a> <a href="#ref-for-screen⑤④">(2)</a> <a href="#ref-for-screen⑤⑤">(3)</a> <a href="#ref-for-screen⑤⑥">(4)</a> <a href="#ref-for-screen⑤⑦">(5)</a> <a href="#ref-for-screen⑤⑧">(6)</a> <a href="#ref-for-screen⑤⑨">(7)</a> <a href="#ref-for-screen⑥⓪">(8)</a> <a href="#ref-for-screen⑥①">(9)</a> <a href="#ref-for-screen⑥②">(10)</a>
     <li><a href="#ref-for-screen⑥④">3.4.1. onchange attribute</a>
     <li><a href="#ref-for-screen⑥⑤">3.5. Extensions to FullscreenOptions</a> <a href="#ref-for-screen⑥⑥">(2)</a>
-    <li><a href="#ref-for-screen⑥⑦">3.5.1. requestFullscreen method definition changes</a>
+    <li><a href="#ref-for-screen⑥⑦">3.5.1. Element.requestFullscreen() method definition changes</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="screen-color-depth">
@@ -2168,6 +2222,7 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-dom-screen-isextended①">1.2.2. Detect Screen attribute changes</a>
     <li><a href="#ref-for-dom-screen-isextended②">3.1. Extensions to the Screen interface</a> <a href="#ref-for-dom-screen-isextended③">(2)</a>
     <li><a href="#ref-for-dom-screen-isextended④">3.1.1. isExtended attribute</a>
+    <li><a href="#ref-for-dom-screen-isextended⑤">3.5.1. Element.requestFullscreen() method definition changes</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="dom-screen-onchange">
@@ -2211,6 +2266,13 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-dom-window-getscreendetails⑤">3.7. Permission Policy integration</a>
    </ul>
   </aside>
+  <aside class="dfn-panel" data-for="dom-window-targetscreenfullscreen-slot">
+   <b><a href="#dom-window-targetscreenfullscreen-slot">#dom-window-targetscreenfullscreen-slot</a></b><b>Referenced in:</b>
+   <ul>
+    <li><a href="#ref-for-dom-window-targetscreenfullscreen-slot">3.2.3. Window.open() method definition changes</a> <a href="#ref-for-dom-window-targetscreenfullscreen-slot①">(2)</a> <a href="#ref-for-dom-window-targetscreenfullscreen-slot②">(3)</a>
+    <li><a href="#ref-for-dom-window-targetscreenfullscreen-slot③">3.5.1. Element.requestFullscreen() method definition changes</a>
+   </ul>
+  </aside>
   <aside class="dfn-panel" data-for="screendetails">
    <b><a href="#screendetails">#screendetails</a></b><b>Referenced in:</b>
    <ul>
@@ -2284,6 +2346,7 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
     <li><a href="#ref-for-screendetailed⑨">3.4. The ScreenDetailed interface</a> <a href="#ref-for-screendetailed①⓪">(2)</a>
     <li><a href="#ref-for-screendetailed①①">3.4.1. onchange attribute</a>
     <li><a href="#ref-for-screendetailed①②">3.5. Extensions to FullscreenOptions</a>
+    <li><a href="#ref-for-screendetailed①③">3.5.1. Element.requestFullscreen() method definition changes</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="dom-screendetailed-availleft">
@@ -2350,6 +2413,7 @@ <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content
    <b><a href="#dom-fullscreenoptions-screen">#dom-fullscreenoptions-screen</a></b><b>Referenced in:</b>
    <ul>
     <li><a href="#ref-for-dom-fullscreenoptions-screen">3.5. Extensions to FullscreenOptions</a>
+    <li><a href="#ref-for-dom-fullscreenoptions-screen①">3.5.1. Element.requestFullscreen() method definition changes</a> <a href="#ref-for-dom-fullscreenoptions-screen②">(2)</a>
    </ul>
   </aside>
   <aside class="dfn-panel" data-for="dom-permissionname-window-placement">