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Test Info:

<!DOCTYPE html>
<html>
<script>
addEventListener("DOMContentLoaded", function(){
let root = document.documentElement;
while(root.firstChild) {
root.firstChild.remove();
}
let o_0 = document.createElement("body");
root.appendChild(o_0);
o_0.appendChild(document.createElement("table"));
o_0.appendChild(document.createElement("canvas"));
let o_1 = document.createElement("canvas");
o_0.appendChild(o_1);
o_1.setAttribute("contenteditable", "true");
setTimeout(function(){
document.execCommand("selectAll", false, "Marker felt");
document.designMode = 'on';
document.execCommand("insertorderedlist", false, null);
document.execCommand("insertorderedlist", false, null);
}, 0);
});
</script>
</html>