You should review the related Github issue https://github.com/h5bp/html5-boilerplate/issues/378
Seems that you need to move the location of the tag to before the IE Conditional Comments
<!doctype html>
<html lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<!--[if lt IE 9]><html class="oldie"><![endif]-->
<meta charset="utf-8">
<title>Document</title>
</head>
<body>
</body>
</html>