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Status: 412 Precondition Failed
Content-type: text/html
Retry-After: 86400
<?xml version="1.0"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Validation Results - W3C Markup Validator</title>
<link rev="made" href="mailto:www-validator@w3.org" />
<link rev="start" href="/" title="Home Page" />
<style type="text/css" media="all">@import "/base.css";</style>
<meta name="keywords" content="HTML, HyperText Markup Language, Validation,
W3C Markup Validation Service" />
<meta name="description" content="W3C's easy-to-use
HTML validation service, based on an SGML parser." />
</head>
<body>
<div id="banner">
<h1 id="title">
<a href="http://www.w3.org/"><img height="48" alt="W3C" id="logo" src="http://www.w3.org/Icons/WWW/w3c_home_nb" /></a>
<a href="http://www.w3.org/QA/"><img src="http://www.w3.org/QA/2002/12/qa-small.png" alt="QA" /></a>
Markup Validation Service</h1>
<span id="versioninfo"><abbr title="version">v</abbr>0.7.4</span>
</div>
<ul class="navbar" id="menu">
<li><span class="hideme"><a href="#skip" accesskey="2" title="Skip past navigation to main part of page">Skip Navigation</a> |</span>
<a href="/" accesskey="1" title="Go to the Home Page for The W3C Markup Validation Service"><strong>Home</strong></a></li>
<li><a href="/about.html" title="Information About this Service">About...</a></li>
<li><a href="/whatsnew.html" title="The changes made to this service recently">News</a></li>
<li><a href="/docs/" accesskey="3" title="Documentation for this Service">Docs</a></li>
<li><a href="/docs/help.html" title="Help and answers to frequently asked questions">Help & <acronym title="Frequently Asked Questions">FAQ</acronym></a></li>
<li><a href="/feedback.html" accesskey="4" title="How to provide feedback on this service">Feedback</a></li>
</ul>
<div id="main">
<div id="head">
</div><!-- end of "head" -->
<div id="result">
<h2 id="results" class="invalid">Sorry! This document can not be checked.</h2>
<a id="skip" name="skip"></a>
<h2><strong>No Referer header found!</strong></h2>
<p>
You have requested we check the referring page, but your browser did
not send the HTTP "Referer" header field. This can be for several
reasons, but most commonly it is because your browser does not
know about this header, has been configured not to send one, or is
behind a proxy or firewall that strips it out of the request before
it reaches us.
</p>
<p>This is <em>not</em> an error in the referring page!</p>
<p>
Please use the form interface on the
<a href="/">Validator Home Page</a> (or the
<a href="detailed.html">Extended Interface</a>) to check the
page by URL.
</p>
</div><!-- results -->
</div><!-- end of "main" -->
<address>
<a href="http://validator.w3.org/check?uri=referer"><img
src="http://www.w3.org/Icons/valid-xhtml10" height="31" width="88"
alt="Valid XHTML 1.0!" /></a>
<a title="Send Feedback for the W3C Markup Validation Service"
href="/feedback.html">The W3C Validator Team</a><br />
</address>
</body>
</html>
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