diff --git a/source b/source
index 69d4ebdc239..57815805319 100644
--- a/source
+++ b/source
@@ -27545,6 +27545,11 @@ href="?audio">audio&lt;/a> test instead.)&lt;/p></pre>
    to <var>url</var>.</p></li>
   </ol>
 
+  <p>Any <span data-x="navigate">navigation</span> required of the user agent in the <span>process
+  the <code>iframe</code> attributes</span> algorithm must use the <code>iframe</code> element's
+  <span>node document</span>'s <span>browsing context</span> as the <span>source browsing
+  context</span>.</p>
+
   <p>Furthermore, if the <span>active document</span> of the element's <span>child browsing
   context</span> before such a <span data-x="navigate">navigation</span> was not <span>completely
   loaded</span> at the time of the new <span data-x="navigate">navigation</span>, then the <span
@@ -112513,6 +112518,11 @@ if (s = prompt('What is your name?')) {
 
   </dl>
 
+  <p>Any <span data-x="navigate">navigation</span> required of the user agent in the <span>process
+  the <code>frame</code> attributes</span> algorithm must use the <code>frame</code> element's
+  <span>node document</span>'s <span>browsing context</span> as the <span>source browsing
+  context</span>.</p>
+
   <p>Furthermore, if the <span>active document</span> of the element's <span>child browsing
   context</span> before such a <span data-x="navigate">navigation</span> was not <span>completely
   loaded</span> at the time of the new <span data-x="navigate">navigation</span>, then the <span