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<html>
<body>
Aloha! My URL is <span id='url'></span>.
<script>
document.getElementById('url').innerHTML = window.location;
</script>
<script>
// The input element is getting synthesized key events and will prevent
// default on the first ESC keydown event.
var alreadyBlocked = false;
addEventListener('keydown', function(e) {
if (e.keyCode == SpecialPowers.Ci.nsIDOMKeyEvent.DOM_VK_ESCAPE &&
alreadyBlocked == false) {
alreadyBlocked = true;
e.preventDefault();
}
});
</script>
</body>
</html>
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