chromium/third_party/blink/web_tests/fast/dom/HTMLAreaElement/area-download.html

<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
if (window.testRunner) {
  testRunner.dumpAsText();
  testRunner.waitUntilExternalURLLoad();
}
</script>
</head>
<body>
<map name="imagemap">
  <area id="area" download="foo" shape="rect" coords="0, 0, 100, 100">
</map>
<img width="100" height="100" usemap="#imagemap"/>
<script>
function click(elmt)
{
    if (!window.eventSender) {
        alert('Click the area to run the test.');
        return;
    }
    eventSender.mouseMoveTo(elmt.offsetLeft + elmt.offsetWidth / 2, elmt.offsetTop + elmt.offsetHeight / 2);
    eventSender.mouseDown();
    eventSender.mouseUp();
}

function runTest()
{
    var string = "<!doctype html><html><head><title>Title</title><script>if (window.testRunner) testRunner.dumpAsText(); </" + "script></head><body>PASS</body></html>";
    var blob = new Blob([string], {type: "text/html"});
    var area = document.getElementById("area");
    area.href = window.URL.createObjectURL(blob);
    click(area);
}
runTest();
</script>
</body>
</html>