<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Test for Bug 976673</title>
</head>
<body>
  <input id="input" onfocus="event.target.value = event.type;"
                    onblur="event.target.value = event.type;">
  <script>
    var input = document.getElementById("input");
    window.addEventListener("message", function (aEvent) {
        switch (aEvent.data) {
          case "init":
            input.blur();
            input.value = "";
            input.focus();
          // fall through
          case "check":
            aEvent.source.postMessage("input-value: " + input.value, "*");
            break;
        }
      });
  </script>
</body>
</html>
