<!DOCTYPE html>
<html>
<head>
<script>
    var timeEvent = document.createEvent('TimeEvent');
    var mutationEvent = document.createEvent('MutationEvents');
    mutationEvent.__proto__ = timeEvent;
    mutationEvent.target;

    var mouseScrollEvent = document.createEvent("MouseScrollEvents");
    var mouseEvent = document.createEvent("MouseEvents");
    mouseEvent.__proto__ = mouseScrollEvent;
    mouseEvent.relatedTarget;

    var uiEvent = document.createEvent("UIEvents");
    uiEvent.__proto__ = mouseScrollEvent;
    uiEvent.rangeParent;
</script>
</head>
</html>
