chromium/third_party/blink/web_tests/external/wpt/html/editing/dnd/drop/028.html

<!doctype html>
<html>
  <head>
    <title>Dropping element with uninitialized effectAllowed</title>
    <style type="text/css">
div, p {
  margin: 0.2em;
  height: 70px;
  width: 400px;
  background: orange;
  color: black;
}
p {
  background: navy;
  color: white;
}
    </style>
    <script type="text/javascript">
window.onload = function () {
  var dragmicro = document.getElementsByTagName('div')[0];
  dragmicro.ondragstart = function (e) {
    e.dataTransfer.setData('text/plain','dummy text');
  };
  var droptarget = document.getElementsByTagName('p')[0];
  droptarget.ondragenter = droptarget.ondragover = function (e) {
    e.preventDefault();
  };
  droptarget.ondrop = function (e) {
    e.preventDefault();
    this.innerHTML = 'PASS';
  };
};
    </script>
  </head>
  <body>

    <noscript><p>Enable JavaScript and reload</p></noscript>
    <div draggable="true">Drag this rectangle.</div>
    <p>Drop onto this rectangle. Fail if this text does not change.</p>

  </body>
</html>