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Short URL: http://html5.org/r/6379

SVNBugCommentTime (UTC)
637913106Try to clarify that UAs don't have to continually be rescanning for icons and sorting each time.2011-08-06 00:31
Index: source
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--- source	(revision 6378)
+++ source	(revision 6379)
@@ -61732,14 +61732,18 @@
   title="attr-link-media">media</code>, and <code
   title="attr-link-sizes">sizes</code> attributes. If there are
   multiple equally appropriate icons, user agents must use the last
-  one declared in <span>tree order</span>. If the user agent tries to
-  use an icon but that icon is determined, upon closer examination, to
-  in fact be inappropriate (e.g. because it uses an unsupported
-  format), then the user agent must try the next-most-appropriate icon
-  as determined by the attributes.</span></p>
+  one declared in <span>tree order</span> at the time that the user
+  agent collected the list of icons. If the user agent tries to use an
+  icon but that icon is determined, upon closer examination, to in
+  fact be inappropriate (e.g. because it uses an unsupported format),
+  then the user agent must try the next-most-appropriate icon as
+  determined by the attributes.</span></p>
 
   <div class="impl">
 
+  <p class="note">User agents are not required to update icons when
+  the list of icons changes, but are encouraged to do so.</p>
+
   <p>There is no default type for resources given by the <code
   title="rel-icon">icon</code> keyword. However, for the purposes of
   <a href="#concept-link-type-sniffing">determining the type of the

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