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Test Info:
<!DOCTYPE>
<html>
<head>
<meta charset="UTF-8">
<script>
function boom(){
document.designMode = "on";
document.execCommand("insertlinebreak");
document.designMode = "off";
document.designMode = "on";
document.execCommand("insertunorderedlist");
}
addEventListener("DOMContentLoaded", boom);
</script>
</head>
<body style="display:flex;">
<!--comment-->
</body>
</html>