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<!DOCTYPE html>
<meta charset='utf-8'>
<title>drag & drop – crash when drag is interrupted by dialogs</title>
<style>
body > div {
height: 200px;
width: 200px;
background-color: orange;
position: absolute;
top: 8px;
left: 8px;
}
body > div * {
display: none;
}
body > div + div {
background-color: navy;
left: 250px;
}
p {
margin-top: 220px;
}
</style>
<script>
window.onload = function() {
var doneonce = false;
document.getElementsByTagName('div')[0].ondragstart = function(e) {
alert( doneonce ? 'Dismiss this dialog. PASS if the browser does not crash.' : 'Dismiss this dialog. The browser should not crash. Without re-focusing the page first, try dragging the orange square a second time. If a second alert does not appear, release the drag, and then try dragging the orange square a third time.' );
doneonce = true;
};
};
</script>
<div draggable='true' itemscope></div><div></div>
<p>Try to drag the orange square onto the blue square.</p>
<noscript><p>Enable JavaScript and reload</p></noscript>