diff --git a/source b/source
index ef1bff95b27..ff8f870c5c4 100644
--- a/source
+++ b/source
@@ -4876,6 +4876,10 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
     data-x="">cross-origin-isolated</code></dfn>", which has a <span
     data-x="concept-default-allowlist">default allowlist</span> of <code
     data-x="">'self'</code>.</li>
+    <li>"<dfn data-x="focus-without-user-activation-feature"><code
+    data-x="">focus-without-user-activation</code></dfn>", which has a <span
+    data-x="concept-default-allowlist">default allowlist</span> of <code
+    data-x="">'self'</code>.</li>
   </ul>
 
 
@@ -61520,6 +61524,11 @@ interface <dfn interface>HTMLDialogElement</dfn> : <span>HTMLElement</span> {
   are as follows:</p>
 
   <ol>
+   <li><p>If this algorithm is triggered without <span data-x="transient activation">transient use
+   activation</span> and the <var>target</var> is not <span>allowed to use</span> the "<code
+   data-x="focus-without-user-activation-feature">focus-without-user-activation</code>" feature,
+   then return.</p></li>
+
    <li><p>Let <var>control</var> be null.</p></li>
 
    <li><p>If <var>subject</var> has the <code data-x="attr-fe-autofocus">autofocus</code>
@@ -80532,6 +80541,12 @@ dictionary <dfn dictionary>ToggleEventInit</dfn> : <span>EventInit</span> {
 
    <li><p>If <var>current</var> is null, then return.</p></li>
 
+   <li><p>If this algorithm is triggered without <span data-x="transient activation">transient user
+   activation</span> and is not triggered by script execution from <var>current</var>'s
+   <span>ancestor navigables</span>, and <var>current</var>'s <span>active document</span> is not
+   <span>allowed to use</span> the "<code data-x="focus-without-user-activation-feature">
+   focus-without-user-activation</code>" feature, then return.</p></li>
+
    <li><p>Run the <span>focusing steps</span> with <var>current</var>.</p></li>
 
    <li><p>If <var>current</var> is a <span>top-level traversable</span>, user agents are encouraged
@@ -80551,6 +80566,12 @@ dictionary <dfn dictionary>ToggleEventInit</dfn> : <span>EventInit</span> {
   method on elements, when invoked, must run the following steps:</p>
 
   <ol>
+   <li><p>If this algorithm is triggered without <span data-x="transient activation">transient user
+   activation</span> and is not triggered by script execution from element's <span>ancestor
+   navigables</span>, and the element's <span>node document</span> is not <span>allowed to use</span>
+   the "<code data-x="focus-without-user-activation-feature">focus-without-user-activation</code>"
+   feature, then return.</p></li>
+
    <li><p>If the element is marked as <i data-x="locked for focus">locked for focus</i>, then return.</p></li>
 
    <li><p>Mark the element as <dfn>locked for focus</dfn>.</p></li>
@@ -80657,6 +80678,11 @@ dictionary <dfn dictionary>ToggleEventInit</dfn> : <span>EventInit</span> {
    <li><p>If <var>target</var>'s <span>active sandboxing flag set</span> has the
    <span>sandboxed automatic features browsing context flag</span>, then return.</p></li>
 
+   <li><p>If this algorithm is triggered without <span data-x="transient activation">transient use
+   activation</span> and the <var>target</var> is not <span>allowed to use</span> the "<code
+   data-x="focus-without-user-activation-feature">focus-without-user-activation</code>" feature,
+   then return.</p></li>
+
    <li><p><span data-x="list iterate">For each</span> <var>ancestorNavigable</var> of
    <var>target</var>'s <span>ancestor navigables</span>: if <var>ancestorNavigable</var>'s <span
    data-x="nav-document">active document</span>'s <span
@@ -85718,6 +85744,11 @@ dictionary <dfn dictionary>DragEventInit</dfn> : <span>MouseEventInit</span> {
   element</span> <var>subject</var>:</p>
 
   <ol>
+   <li><p>If this algorithm is triggered without <span data-x="transient activation">transient use
+   activation</span> and the <var>target</var> is not <span>allowed to use</span> the "<code
+   data-x="focus-without-user-activation-feature">focus-without-user-activation</code>" feature,
+   then return.</p></li>
+
    <li><p>If <var>subject</var> is a <code>dialog</code> element, then run the <span>dialog focusing
    steps</span> given <var>subject</var> and return.</p></li>
 
@@ -144394,6 +144425,7 @@ INSERT INTERFACES HERE
   Edward Welbourne,
   Edward Z. Yang,
   Ehsan Akhgari,
+  Ehsan Karamad,
   Eira Monstad,
   Eitan Adler,
   Eli Friedman,
@@ -145032,6 +145064,7 @@ INSERT INTERFACES HERE
   Yu Han, <!-- yuzhe-han on GitHub -->
   Simon Spiegel,
   Simon Wülker, <!-- Wuelle on GitHub -->
+  Siye Liu,
   skeww, <!-- on reddit -->
   Smylers,
   Srirama Chandra Sekhar Mogali,