greasemonkey issue 1508 test case

1580.user.js

// ==UserScript==
// @name       iframe test
// @version    1
// @namespace  iframe
// @include    http://localhost/1
// @include    http://localhost/2
// ==/UserScript==

function tdump(msg) {
  dump(new Date().toLocaleTimeString() + ' ' + msg + '\n');
}

if(location.path === '/1') {
  window.addEventListener('message', function(e) {
    tdump(e.data);
  }, false);
}

if (location.pathname === '/2') {
  tdump('the userscript has now been executed in the iframe');
} else {
  document.documentElement.innerHTML = 
      '<iframe src=http://localhost/2></iframe>';
  document.querySelector('iframe').onload = function(e) {
    tdump('iframe onload event (' + e.target.src + ')');
  };

  setTimeout(function() {
    document.querySelector('iframe').src = 'about:blank';
  }, 5000);

  setTimeout(function() {
    document.querySelector('iframe').src = 'http://localhost/2';
  }, 10000);
}