fix: Permit UA to ignore user-triggered changes inside live regions (#…

…1820)

Co-authored-by: James Craig <cookiecrook@users.noreply.github.com>

index.html

@@ -10352,7 +10352,7 @@ <h3>Widget Attributes</h3>
 		</section>
 		<section id="attrs_liveregions">
 			<h3>Live Region Attributes</h3>
-			<p>This section contains [=attributes=] specific to <a>live regions</a> in rich internet applications. These attributes may be applied to any <a>element</a>. The purpose of these attributes is to indicate that content changes may occur without the element having focus, and to provide <a>assistive technologies</a> with information on how to process those content updates. Some <a>roles</a> specify a default value for the <pref>aria-live</pref> attribute specific to that role. An example of a live region is a ticker section that lists updating stock quotes.</p>
+			<p>This section contains [=attributes=] specific to <a>live regions</a> in rich internet applications. These attributes may be applied to any <a>element</a>. The purpose of these attributes is to indicate that content changes may occur without the element having focus, and to provide <a>assistive technologies</a> with information on how to process those content updates. Some <a>roles</a> specify a default value for the <pref>aria-live</pref> attribute specific to that role. An example of a live region is a ticker section that lists updating stock quotes. User agents MAY ignore changes triggered by direct user action on an <a>element</a> inside a live region (e.g., editing the value of a text field).</p>
 			<ul>
 				<li><pref>aria-atomic</pref></li>
 				<li><sref>aria-busy</sref></li>