I tested again on another domain and I still same result.
No code is generated.
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>Untitled Document</title>
</head>
<body>
<form action="" method="post" enctype="multipart/form-data" name="form1">
<label for="test"></label>
<input type="file" name="test" id="test">
<input type="submit" name="submit" id="submit" value="Submit">
</form>
</body>
</html>