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<title>drag &amp; drop - moving windows must not start a drag</title>
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  li1.ondragstart = li2.ondragstart = function(e) {
    e.dataTransfer.effectAllowed = 'copy';
    e.dataTransfer.setData('Text', 'dummy text');
    this.innerHTML = 'FAIL';
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  li1.onmousedown = function () { window.moveBy(0,10); };
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<p></p>
<ol>
  <li onclick="window.open(location.href,'_blank','width=500,height=300');">Click here to open this page in a popup window.</li>
  <li>Ensure that this popup window is not maximised (or tab, in the case of tabs being rendered as an MDI).</li>
  <li>Ensure that your browser settings allow browser windows to be moved by scripts.</li>
  <li draggable='true'>Press your mouse down on this text but do not move it afterwards. Fail if a drag operation has started (eg. if the mouse cursor shows that you are dragging something, or if some drag placeholder text appears, or if this text changes).</li>
  <li draggable='true'>Press your mouse down on this text but do not move it afterwards. Fail if a drag operation has started (eg. if the mouse cursor shows that you are dragging something, or if some drag placeholder text appears, or if this text changes).</li>
</ol>
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