browser/components/sessionstore/test/browser_464620_a.html

<!-- Testcase originally by <moz_bug_r_a4@yahoo.com> -->

<title>Test for bug 464620 (injection on input)</title>

<iframe></iframe>
<iframe onload="setup()"></iframe>

<script>
  var targetUrl = "http://mochi.test:8888/browser/" +
    "browser/components/sessionstore/test/browser_464620_xd.html";
  var firstPass;

  function setup() {
    if (firstPass !== undefined)
      return;
    firstPass = frames[1].location.href == "about:blank";
    if (firstPass) {
      frames[0].location = 'data:text/html;charset=utf-8,<body onload="if (parent.firstPass) parent.step();"><input id="x" oninput="parent.xss()">XXX</body>';
    }
    frames[1].location = targetUrl;
  }

  function step() {
    var x = frames[0].document.getElementById("x");
    if (x.value == "")
      x.value = "ready";
    x.style.display = "none";
    frames[0].document.designMode = "on";
  }

  function xss() {
    step();

    var documentInjected = false;
    document.getElementsByTagName("iframe")[0].onload =
      function() { documentInjected = true; };
    frames[0].location = targetUrl;

    for (var c = 0; !documentInjected && c < 20; c++) {
      var r = new XMLHttpRequest();
      r.open("GET", location.href, false);
      r.overrideMimeType("text/plain");
      r.send(null);
    }
    document.getElementById("state").textContent = "done";

    var event = new MessageEvent('464620_a', { bubbles: true, cancelable: false,
                                               data: "done", origin: location.href,
                                               source: window });
    document.dispatchEvent(event);
  }
</script>

<p id="state">pending</p>