<iframe id="iframe" src="doc-message-run-to-completion-frame.html"></iframe>
<script>
function test() {
  var messageName = "test-message";

  function handleMessage(event) {
    // While paused here, the additional posted messages should not be delivered.
    // The debugger should pause three times.
    debugger;
  }

  window.addEventListener("message", handleMessage, true);
  document.getElementById("iframe").contentWindow.addEventListener("message", handleMessage, true);

  window.postMessage("first", "*");
  document.getElementById("iframe").contentWindow.postMessage("second", "*");
  window.postMessage("third", "*");
}
</script>
