<!DOCTYPE html>
<head>
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
</head>
<body>
  <iframe id="if" src="about:blank"></iframe>
  <script>
    var t = async_test("document.cookie behavior on documents without browser context");
    t.add_cleanup(function() {
      document.cookie = "nav_away_test=yes;max-age=0";
    });

    function step2() {
      t.step(function() {
        // Get from saved doc should fail.
        assert_equals(window.iframeDoc.cookie, "");

        // Try set from saved doc, should do nothing.
        window.iframeDoc.cookie = "nav_away_test=second";
        assert_equals(window.iframeDoc.cookie, "");
        assert_not_equals(document.cookie.indexOf("nav_away_test=yes"), -1);
      });
      t.done();
    }

    t.step(function() {
      document.cookie = "nav_away_test=yes";
      var iframe = document.getElementById("if");
      // Save original document.
      window.iframeDoc = iframe.contentDocument;
      assert_not_equals(window.iframeDoc.cookie.indexOf("nav_away_test=yes"), -1);

      // Navigate away.
      iframe.onload = step2;
      iframe.contentWindow.location = "/common/blank.html";
    })
  </script>
</body>