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<title>[15438] branches/3.0/wp-includes/canonical.php:
  Hex octets are case-insenstive.</title>
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<div id="msg">
<dl>
<dt>Revision</dt> <dd><a href="http://trac.wordpress.org/changeset/15438">15438</a></dd>
<dt>Author</dt> <dd>ryan</dd>
<dt>Date</dt> <dd>2010-07-18 13:47:24 +0000 (Sun, 18 Jul 2010)</dd>
</dl>

<h3>Log Message</h3>
<pre>Hex octets are case-insenstive.  Don't 301 when only the octet case differs. Props hakre. fixes <a href="http://trac.wordpress.org/ticket/14292">#14292</a> for 3.0.1</pre>

<h3>Modified Paths</h3>
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<li><a href="#branches30wpincludescanonicalphp">branches/3.0/wp-includes/canonical.php</a></li>
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<h3>Diff</h3>
<a id="branches30wpincludescanonicalphp"></a>
<div class="modfile"><h4>Modified: branches/3.0/wp-includes/canonical.php (15437 => 15438)</h4>
<pre class="diff"><span>
<span class="info">--- branches/3.0/wp-includes/canonical.php        2010-07-18 13:46:35 UTC (rev 15437)
+++ branches/3.0/wp-includes/canonical.php        2010-07-18 13:47:24 UTC (rev 15438)
</span><span class="lines">@@ -343,6 +343,16 @@
</span><span class="cx"> 
</span><span class="cx">         if ( !$redirect_url || $redirect_url == $requested_url )
</span><span class="cx">                 return false;
</span><ins>+                
+        // Hex encoded octets are case-insensitive. 
+        if ( false !== strpos($requested_url, '%') ) {
+                if ( !function_exists('lowercase_octets') ) {
+                        function lowercase_octets($matches) { 
+                                return strtolower( $matches[0] ); 
+                        } 
+                }
+                $requested_url = preg_replace_callback('|%[a-fA-F0-9][a-fA-F0-9]|', 'lowercase_octets', $requested_url);
+        }
</ins><span class="cx"> 
</span><span class="cx">         // Note that you can use the &quot;redirect_canonical&quot; filter to cancel a canonical redirect for whatever reason by returning FALSE
</span><span class="cx">         $redirect_url = apply_filters('redirect_canonical', $redirect_url, $requested_url);
</span></span></pre>
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