There is a problem with empty custom DocumentTitle.
PHP
<?php $mytitle = ''; ?>
paq.push(['setDocumentTitle', <?php echo $mytitle; ?> + document.title]);
Sourcecode
paq.push(['setDocumentTitle', + document.title]);
= not valid JavaScript.
Report
Pagetitle
PHP
<?php $mytitle = ''; ?>
paq.push(['setDocumentTitle', '<?php echo $mytitle; ?>' + document.title]);
Sourcecode
paq.push(['setDocumentTitle', '' + document.title]);
Report
"" Pagetitle
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