convert: quote "^" to avoid windows using it as an escape char.
#header#
<title>#repo|escape#: Error</title>
<link rel="alternate" type="application/atom+xml"
href="{url}atom-log" title="Atom feed for #repo|escape#">
<link rel="alternate" type="application/rss+xml"
href="{url}rss-log" title="RSS feed for #repo|escape#">
</head>
<body>
<div class="page_header">
<a href="http://www.selenic.com/mercurial/" title="Mercurial"><div style="float:right;">Mercurial</div></a><a href="{url}summary{sessionvars%urlparameter}">#repo|escape#</a> / error
</div>
<div class="page_nav">
<a href="{url}summary{sessionvars%urlparameter}">summary</a> | <a href="{url}shortlog{sessionvars%urlparameter}">shortlog</a> | <a href="{url}log{sessionvars%urlparameter}">changelog</a> | <a href="{url}tags{sessionvars%urlparameter}">tags</a> | <a href="{url}file/#node|short#{sessionvars%urlparameter}">manifest</a><br/>
</div>
<div class="page_body">
<br/>
<i>An error occured while processing your request</i><br/>
<br/>
{error|escape}
</div>
#footer#