The Tor Browser: dom/tests/mochitest/whatwg/test_bug500328.html@6474c204b198 (annotated)

dom/tests/mochitest/whatwg/test_bug500328.html@6474c204b198 (annotated)

dom/tests/mochitest/whatwg/test_bug500328.html

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 <!DOCTYPE HTML>
 <html>
 <!--
 https://bugzilla.mozilla.org/show_bug.cgi?id=500328
 -->
 <head>
   <title>Test for Bug 500328</title>
   <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
   <script type="application/javascript" src="/tests/SimpleTest/EventUtils.js"></script>
   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
 </head>
 <body>
 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=500328">Mozilla Bug 500328</a>
 <p id="display"></p>
 <div id="status"></div>
 <div id="content">
   <iframe id="iframe"></iframe>
   <iframe id="iframe2"></iframe>
   <a id="link">link</a>
 </div>
 <pre id="test">
 <script type="application/javascript;version=1.7">
 /** Test for Bug 500328 **/
 SimpleTest.waitForExplicitFinish();
 var iframe = document.getElementById("iframe");
 var iframeCw = iframe.contentWindow;
 var iframe2 = document.getElementById("iframe2");
 var iframe2Cw = iframe2.contentWindow;
 const unvisitedColor = "rgb(0, 0, 238)";
 const visitedColor = "rgb(85, 26, 139)";
 var gCallbackOnIframeLoad = false;
 var gCallbackOnIframePageShow = false;
 var gCallbackOnPopState = false;
 var gNumPopStates = 0;
 var gLastPopStateEvent;
 var gLastScriptHistoryState;
 var gGen;
 function statusMsg(msg) {
   var msgElem = document.createElement("p");
   msgElem.appendChild(document.createTextNode(msg));
   document.getElementById("status").appendChild(msgElem);
 }
 function longWait() {
   function hitEventLoop(times, func) {
     if (times > 0) {
       setTimeout(hitEventLoop, 0, times - 1, func);
     } else {
       setTimeout(func, 0);
     }
   }
   hitEventLoop(100, function() { gGen.next(); });
 }
 function shortWait() {
   setTimeout(function() { gGen.next(); }, 0);
 }
 function onChildPopState(e) {
   gNumPopStates++;
   gLastPopStateEvent = e;
   if (gCallbackOnPopState) {
     statusMsg("Popstate(" + JSON.stringify(e.state) + ").  Calling gGen.next().");
     gCallbackOnPopState = false;
     gGen.next();
   }
   else {
     statusMsg("Popstate(" + JSON.stringify(e.state) + ").  NOT calling gGen.next().");
   }
 }
 function onChildScript(state) {
   gLastScriptHistoryState = state;
 }
 function getURLFromEvent(e) {
   try {
     var target = e.target;
     if ("contentWindow" in target) {
       return target.contentWindow.location.toString();
     }
     if ("ownerDocument" in target && target.ownerDocument) {
       return target.ownerDocument.location.toString();
     }
     if ("location" in target) {
       return target.location.toString();
     }
     return target.toString();
   }
   catch(ex) {
     return "<cross-site object>";
   }
 }
 function onChildLoad(e) {
   if(gCallbackOnIframeLoad) {
     statusMsg("Got load for " + getURLFromEvent(e) + ".  About to call gGen.next().");
     gCallbackOnIframeLoad = false;
     gGen.next();
   }
   else {
     statusMsg("Got load for " + getURLFromEvent(e) + ", but not calling gGen.next() because gCallbackOnIframeLoad was false.");
   }
 }
 function onChildPageShow(e) {
   if(gCallbackOnIframePageShow) {
     statusMsg("Got pageshow for " + getURLFromEvent(e) + ".  About to call gGen.next().");
     gCallbackOnIframePageShow = false;
     SimpleTest.executeSoon(function() { gGen.next(); });
   }
   else {
     statusMsg("Got pageshow for " + getURLFromEvent(e) + ", but not calling gGen.next() because gCallbackOnIframePageShow was false.");
   }
 }
 function enableChildLoadCallback() {
   gCallbackOnIframeLoad = true;
 }
 function enableChildPageShowCallback() {
   gCallbackOnIframePageShow = true;
 }
 function enableChildPopStateCallback() {
   gCallbackOnPopState = true;
 }
 function clearPopStateCounter() {
   gNumPopStates = 0;
 }
 function noPopStateExpected(msg) {
   is(gNumPopStates, 0, msg);
   // Even if there's an error, set gNumPopStates to 0 so other tests don't
   // fail.
   gNumPopStates = 0;
 }
 function popstateExpected(msg) {
   is(gNumPopStates, 1, msg);
   gNumPopStates = 0;
 }
 function getColor(elem) {
   var utils = SpecialPowers.wrap(document).defaultView.
                 QueryInterface(SpecialPowers.Ci.nsIInterfaceRequestor).
                 getInterface(SpecialPowers.Ci.nsIDOMWindowUtils);
   return utils.getVisitedDependentComputedStyle(elem, "", "color");
 }
 function getSHistory(theWindow)
 {
   const Ci = SpecialPowers.Ci;
   var sh = SpecialPowers.wrap(theWindow.QueryInterface(Ci.nsIInterfaceRequestor))
                         .getInterface(Ci.nsIWebNavigation)
                         .sessionHistory;
   if (!sh || sh == null)
     throw("Couldn't get shistory for window!");
   return sh;
 }
 function getSHTitle(sh, offset)
 {
   if (!offset)
     offset = 0;
   // False instructs the SHistory not to modify its current index.
   return sh.getEntryAtIndex(sh.index + offset, false).title;
 }
 // Tests that win's location ends with str
 function locationEndsWith(win, str) {
   var exp = new RegExp(str + "$");
   ok(win.location.toString().match(exp),
      "Wrong window location.  Expected it to end with " +
      str + ", but actuall was " + win.location);
 }
 function expectException(func, msg) {
   var failed = false;
   try {
     func();
   } catch(ex) {
     failed = true;
   }
   ok(failed, msg + " succeeded, but should have failed.");
 }
 function runTest() {
   // We can't enable universal XPConnect privleges in this function, because
   // test 5 needs to be running at normal privleges in order to test the
   // same-origin policy.
   /**
    * PRELIMINARY:
    *  1. Clear the popstate counter
    */
   clearPopStateCounter();
   // The URL of file_bug500328_1.html on http://localhost:8888
   var innerLoc;
   // Now we can start the tests
   /**
    * TEST 1 tests basic pushState functionality
    */
   enableChildLoadCallback();
   iframeCw.location = "file_bug500328_1.html";
   yield undefined;
   innerLoc = iframeCw.location.toString();
   // No popstate during initial load.
   shortWait();
   yield undefined;
   noPopStateExpected("No initial popstate.");
   is(JSON.stringify(gLastScriptHistoryState), "null", "null initial state.");
   statusMsg("Awake after first load.");
   // Make sure that the pushstate below doesn't trigger a hashchange.
   iframeCw.onhashchange = function() {
     ok(false, "Pushstate shouldn't trigger a hashchange.");
   };
   var testObj1 = 42;
   var testObj2 = { x: 4.2 };
   iframeCw.history.pushState(testObj1, "test 1");
   is(JSON.stringify(iframeCw.history.state), JSON.stringify(testObj1),
      "correct state after pushState");
   is(iframeCw.location.search, "",
      "First pushstate should leave us where we were.");
   iframeCw.history.pushState(testObj2, "test 1#foo", "?test1#foo");
   is(JSON.stringify(iframeCw.history.state), JSON.stringify(testObj2),
      "correct state after pushState");
   isnot(iframeCw.history.state, testObj2,
      "correct state object identity after pushState");
   is(iframeCw.location.search, "?test1",
      "Second pushstate should push us to '?test1'.");
   is(iframeCw.location.hash, "#foo",
      "Second pushstate should push us to '#foo'");
   shortWait();
   yield undefined;
   // Let the hashchange event fire, if it's going to.
   longWait();
   yield undefined;
   iframeCw.onhashchange = null;
   statusMsg("About to go back to page 1.");
   // We don't have to yield here because this back() and the resulting popstate
   // are completely synchronous.  In fact, if we did yield, JS would throw an
   // error because we'd be calling gGen.next from within gGen.next.
   iframeCw.history.back();
   statusMsg("Awake after going back to page 1.");
   popstateExpected("Going back to page 1 should trigger a popstate.");
   is(gLastPopStateEvent.isTrusted, true, 'Popstate event should be trusted.');
   is(JSON.stringify(gLastPopStateEvent.state), JSON.stringify(testObj1),
      "Wrong state object popped after going back to page 1.");
   ok(gLastPopStateEvent.state === iframeCw.history.state,
      "Wrong state object in document after going back to page 1.");
   ok(iframeCw.location.toString().match(/file_bug500328_1.html$/),
       "Going back to page 1 hould take us to original page.");
   iframeCw.history.back();
   popstateExpected("Going back to page 0 should trigger a popstate.");
   ise(gLastPopStateEvent.state, null,
       "Going back to page 0 should pop a null state.");
   ise(iframeCw.history.state, null,
       "Going back to page 0 should pop a null state.");
   ise(iframeCw.location.search, "",
       "Going back to page 0 should clear the querystring.");
   iframeCw.history.forward();
   popstateExpected("Going forward to page 1 should trigger a popstate.");
   is(JSON.stringify(gLastPopStateEvent.state), JSON.stringify(testObj1),
       "Wrong state object popped after going forward to page 1.");
   ise(gLastPopStateEvent.state, iframeCw.history.state,
       "Wrong state object in document after going forward to page 1.");
   ok(iframeCw.location.toString().match(/file_bug500328_1.html$/),
       "Going forward to page 1 should leave us at original page.");
   statusMsg("About to go forward to page 2.");
   iframeCw.history.forward();
   statusMsg("Awake after going forward to page 2.");
   popstateExpected("Going forward to page 2 should trigger a popstate.");
   is(JSON.stringify(gLastPopStateEvent.state), JSON.stringify(testObj2),
      "Wrong state object popped after going forward to page 2.");
   ise(iframeCw.history.state, gLastPopStateEvent.state,
      "Wrong state object in document after going forward to page 2.");
   ok(iframeCw.location.toString().match(/file_bug500328_1.html\?test1#foo$/),
      "Going forward to page 2 took us to " + iframeCw.location.toString());
   statusMsg("About to reload page 2.");
   iframeCw.location.reload();
   enableChildLoadCallback();
   yield undefined;
   statusMsg("Awake after reloading page 2.");
   noPopStateExpected("Reloading page 2 should not trigger popstate.");
   is(JSON.stringify(iframeCw.history.state), JSON.stringify(testObj2),
      "Wrong state object after reloading page 2.");
   is(JSON.stringify(gLastScriptHistoryState), JSON.stringify(testObj2),
      "Wrong state object while reloading page 2.");
   ok(iframeCw.location.toString().match(/file_bug500328_1.html\?test1#foo$/),
      "Reloading page 2 took us to " + iframeCw.location.toString());
   // The iframe's current location is file_bug500328_1.html?test1#foo.
   // Clicking link1 should take us to file_bug500328_1.html?test1#1.
   enableChildPopStateCallback();
   sendMouseEvent({type:'click'}, 'link-anchor1', iframeCw);
   yield undefined;
   popstateExpected("Clicking on link-anchor1 should trigger a popstate.");
   is(iframeCw.location.search, "?test1",
       "search should be ?test1 after clicking link.");
   is(iframeCw.location.hash, "#1",
       "hash should be #1 after clicking link.");
   ise(iframeCw.history.state, null,
      "Wrong state object in document after clicking link to hash '#1'.");
   /*
    * Reload file_bug500328_1.html; we're now going to test that link hrefs
    * and colors are updated correctly on push/popstates.
    */
   iframe.onload = onChildLoad;
   enableChildLoadCallback();
   iframeCw.location = "about:blank";
   yield undefined;
   enableChildLoadCallback();
   iframeCw.location = "file_bug500328_1.html";
   yield undefined;
   noPopStateExpected("No popstate after re-loading file_bug500328_1.html");
   statusMsg("Done loading file_bug500328_1.html for the second time.");
   var ifLink = iframeCw.document.getElementById("link-anchor1");
   var rand = Date.now() + "-" + Math.random();
   ifLink.href = rand;
   // Poll the document until the link has the correct color, or this test times
   // out.  Unfortunately I can't come up with a more elegant way to do this.
   // We could listen to MozAfterPaint, but that doesn't guarantee that we'll
   // observe the new color.
   while (getColor(ifLink) != unvisitedColor) {
     // Dump so something shows up in the mochitest logs if we spin here.
     dump("ifLink has wrong initial color.  Spinning...\n");
     setTimeout(function() { gGen.next(); }, 0);
     yield undefined;
   }
   // Navigate iframe2 to dir/${rand}
   iframe2.onload = onChildLoad;
   enableChildLoadCallback();
   iframe2Cw.location = "mytestdir/" + rand;
   yield undefined;
   // PushState the iframe into the mytestdir directory.  This should cause
   // ifLink to turn purple, since we just visited mytestdir/${rand} in iframe2.
   iframeCw.history.pushState(null, "foo", "mytestdir/foo");
   // Check that the link's color is now visitedColor
   while (getColor(ifLink) != visitedColor) {
     dump("ifLink has wrong color after pushstate.  Spinning...\n");
     setTimeout(function() { gGen.next(); }, 0);
     yield undefined;
   }
   ok(ifLink.href.match("mytestdir\\/" + rand + "$"),
      "inner frame's link should end with 'mytestdir/${rand}'");
   // Navigate out of the mytestdir directory.  This should cause ifLink to turn
   // blue again.
   iframeCw.history.pushState(null, "bar", "../file_bug500328_1.html");
   // Check that the link's color is back to the unvisited color.
   while (getColor(ifLink) != unvisitedColor) {
     dump("ifLink has wrong color after pushstating out of dir.  Spinning...\n");
     setTimeout(function() { gGen.next(); }, 0);
     yield undefined;
   }
   ok(!ifLink.href.match("mytestdir"),
      "inner frame's link shouldn't contain 'mytestdir'.");
   /*
    * TEST 2 tests that pushstate's same-origin checks are correct.
    */
   var filename = 'file_bug500328_2.html';
   var dirname = document.location.pathname.replace(/[^\/]*$/, '');
   statusMsg("Dirname is: " + dirname);
   iframeCw.location = filename;
   iframe.onload = onChildLoad;
   enableChildLoadCallback();
   yield undefined;
   // This function tries to pushstate and replacestate to the given URL and
   // fails the test if the calls succeed.
   var tryBadPushAndReplaceState = function(url) {
     // XXX ex should be a SECURITY_ERR, not a plain Error.
     var hist = iframeCw.history;
     var url2 = url + dirname + filename;
     expectException(function() { hist.pushState({}, "foo", url); },
                     'pushState to ' + url);
     expectException(function() { hist.pushState({}, "foo", url2); },
                     'pushState to ' + url2);
     expectException(function() { hist.replaceState({}, "foo", url); },
                     'replaceState to ' + url);
     expectException(function() { hist.replaceState({}, "foo", url2); },
                     'replaceState to ' + url2);
   }
   // We're currently at http://example.com/[dirname]/[filename]
   tryBadPushAndReplaceState("https://mochi.test:8888");
   tryBadPushAndReplaceState("http://foo.mochitest:8888");
   tryBadPushAndReplaceState("http://mochi.test:1234");
   tryBadPushAndReplaceState("http://mochi.test.a:8888");
   tryBadPushAndReplaceState("http://mochi.tes:8888");
   tryBadPushAndReplaceState("http://mmochi.test:8888");
   tryBadPushAndReplaceState("http://me@mochi.test:8888");
   /**
    * TEST 3 tests that the session history entries' titles are properly sync'ed
    * after push/pop states.
    *
    * We have to run this test in a popup rather than an iframe because only the
    * root docshell has a session history object.
    */
   statusMsg("About to open popup.");
   var popup = window.open("file_bug500328_1.html", "popup0",
                           "height=200,width=200,location=yes," +
                           "menubar=yes,status=yes,toolbar=yes,dependent=yes");
   enableChildLoadCallback();
   var shistory = getSHistory(popup);
   yield undefined;
   shortWait();
   yield undefined;
   noPopStateExpected("Shouldn't get popstate after opening window.");
   popup.history.pushState(null, "title 0");
   ok(SpecialPowers.isBackButtonEnabled(popup),
      "Back button was not enabled after initial pushstate.");
   popup.document.title = "title 1";
   // Yield to the event loop so listeners will be notified of the title change
   // and so that the hash change we trigger below generates a new session
   // history entry.
   shortWait();
   yield undefined;
   // Check that the current session history entry's title has been updated to
   // reflect the new document title.
   is(getSHTitle(shistory), "title 1", "SHEntry title test 1");
   // Change the page's hash to #1, which will trigger a popstate event.
   // We don't have to wait, because this happens synchronously.
   popup.location.hash = "#1";
   popstateExpected("Didn't get popstate after changing hash.");
   popup.document.title = "title 2";
   // Yield so listeners will be notified of the title change we just performed.
   shortWait();
   yield undefined;
   is(getSHTitle(shistory), "title 2", "SHEntry title test 2");
   // Go back.  Happens synchronously.  We should get a popstate.
   statusMsg("About to go back.");
   popup.history.go(-1);
   popstateExpected("Didn't get a popstate after going back.");
   // Even though we went back, we expect the SHEntry title to remain the same
   // because the document didn't change.
   is(getSHTitle(shistory), "title 2", "SHEntry title test 3");
   popup.document.title = "Changed 1";
   shortWait();
   yield undefined;
   // This check is really a test of bug 509055.
   is(getSHTitle(shistory), "Changed 1", "SHEntry title test 4");
   popup.close();
   /**
    * TEST 4 tests replaceState and that we don't get double popstates on
    * window.open.  It also stress-tests the system and its interaction with
    * bfcache by making many push/replace state calls.
    */
   popup = window.open("file_bug500328_1.html", "popup1",
                       "height=200,width=200,location=yes," +
                       "menubar=yes,status=yes,toolbar=yes,dependent=yes");
   // The initial about:blank load into the new window shouldn't result in us
   // seeing a popstate.  Once file_bug500328_1.html is loaded, it'll overwrite
   // popup.onpopstate, and this assertion won't fire for that popstate and
   // others after.
   //
   // If we fired the popstate event asynchronously, we'd expect this assert to
   // fire.
   popup.onpopstate = function() {
     ok(false, "Initial load of popup shouldn't give us a popstate.");
   };
   shistory = getSHistory(popup);
   enableChildLoadCallback();
   yield undefined;
   statusMsg("Awake after loading content into popup.");
   popup.history.replaceState({n:1, ok:true}, "state 1", "good1.html");
   locationEndsWith(popup, "good1.html");
   // Even though we replaceState with title "state 1", the title should remain
   // "test 1" because we ignore the title argument in push/replaceState.
   // See bug 544535.
   is(getSHTitle(shistory), "test 1", "SHEntry title 'state 1'");
   // Flush the event loop so our next load creates a new session history entry.
   shortWait();
   yield undefined;
   enableChildLoadCallback();
   popup.location = "file_bug500328_1.html";
   yield undefined;
   // Flush the event loop so nsDocShell::OnNewURI runs and our load is recorded
   // properly.
   shortWait();
   yield undefined;
   // Now go back and make sure everything is as it should be.
   enableChildPageShowCallback();
   popup.history.back();
   yield undefined;
   // Flush the event loop so the document's location is updated and any
   // popstates fire.
   shortWait();
   yield undefined;
   noPopStateExpected("no popstate during initial load");
   locationEndsWith(popup, "good1.html");
   is(JSON.stringify(popup.history.state), '{"n":1,"ok":true}',
      "Wrong state popped after going back to initial state.");
   // We're back at state 0, which was replaceState-ed to state1.html.  Let's do
   // some push/pop/replaces to make sure everything works OK when we involve
   // large numbers of SHEntries.
   for(var i = 2; i <= 30; i++) {
     if (i % 3 == 0) {
       popup.history.pushState({n:i, ok:true}, "state " + i, "good" + i + ".html");
     }
     else {
       popup.history.pushState({n:i}, "state " + i, "state" + i + ".html");
       for(var j = 0; j < i % 4; j++) {
         popup.history.replaceState({n:i, nn:j}, "state " + i + ", " + j);
       }
       popup.history.replaceState({n:i, ok:true}, "state " + i, "good" + i + ".html");
     }
   }
   for(var i = 29; i >= 1; i--) {
     popup.history.back();
     popstateExpected("Didn't get a popstate on iteration " + i);
     locationEndsWith(popup, "good" + i + ".html");
     is(gLastPopStateEvent.state.n, i, "Bad counter on last popstate event.");
     ok(gLastPopStateEvent.state.ok,
        "Last popstate event should have 'ok' set to true.");
   }
   popup.close();
   /**
    * TEST 5 tests misc security features and implementation details of
    * Push/ReplaceState
    */
   /*
    * Test that we can't push/replace an object with a large (over 640k
    * characters) JSON representation.
    */
   // (In case you're curious, this loop generates an object which serializes to
   // 694581 characters.)
   var bigObject = new Object();
   for(var i = 0; i < 51200; i++) {
     bigObject[i] = i;
   }
   // statusMsg("Big object has size " + JSON.stringify(bigObject).length);
   // We shouldn't be able to pushstate this large object, due to space
   // constraints.
   expectException(
     function() { iframeCw.history.pushState(bigObject, "foo"); },
     "pushState-ing large object");
   expectException(
     function() { iframeCw.history.replaceState(bigObject, "foo"); },
     "replaceState-ing large object");
   /*
    * Make sure we can't push/replace state on an iframe of a different origin.
    * This will work if this function has requested Universal XPConnect
    * privileges, so any code which needs those privileges can't be in this
    * function.
    */
   enableChildLoadCallback();
   iframeCw.location = "http://example.com";
   iframe.onload = onChildLoad;
   yield undefined;
   iframe.onload = null;
   expectException(
     function() { iframeCw.history.pushState({}, "foo"); },
     "pushState-ing in a different origin");
   expectException(
     function() { iframeCw.history.replaceState({}, "foo"); },
     "replaceState-ing in a different origin");
   /*
    * If we do the following:
    *   * Start at page A.
    *   * PushState to page B.
    *   * Refresh.  The server responds with a 404
    *   * Go back.
    * Then at the end, page A should be displayed, not the 404 page.
    */
   enableChildLoadCallback();
   iframe.onload = onChildLoad;
   iframeCw.location = "about:blank";
   yield undefined;
   iframe.onload = null;
   enableChildLoadCallback();
   // navigate to http://mochi.test:8888/[...]/file_bug500328_1.html
   iframeCw.location = innerLoc;
   yield undefined;
   // PushState to a URL which doesn't exist
   iframeCw.history.pushState({}, "", rand);
   // Refresh.  We'll end up a 404 page.
   iframe.onload = onChildLoad;
   enableChildLoadCallback();
   iframeCw.location.reload(true);
   yield undefined;
   iframe.onload = null;
   // Since the last page was a 404, going back should actually show the
   // contents of the old page, instead of persisting the contents of the 404
   // page.
   enableChildPageShowCallback();
   iframeCw.history.back();
   yield undefined;
   // Make sure that we're actually showing the contents of
   // file_bug500328_1.html, as opposed to the 404 page.
   var identifierElem = iframeCw.document.getElementById("link-anchor1");
   ok(identifierElem != undefined && identifierElem != null,
      "iframe didn't contain file_bug500328_1.html's contents.");
   /**
    * TEST 6 tests that the referrer is set properly after push/replace states.
    */
   /*
    * First, a simple test:
    *   * Load file_bug500328_1.html into iframe
    *   * PushState to newpage1.html#foo
    *   * Instruct the iframe to load file_bug500328_1.html into itself.
    * The referer should be newpage1.html, without the hash.
    *
    * This also tests that we can call pushState from within the onload handler.
    */
   enableChildLoadCallback();
   iframeCw.location = "file_bug500328_1.html";
   yield undefined;
   // Run within the onload handler.  This should work without issue.
   iframeCw.history.pushState(null, "", "newpage1.html");
   // iframeCw.navigateTo() causes the iframe to set its location on our
   // behalf.  We can't just set its location ourselves, because then *we*
   // become the referrer.
   enableChildLoadCallback();
   iframeCw.navigateTo("file_bug500328_1.html");
   yield undefined;
   ok(iframeCw.document.referrer.toString().match(/newpage1.html$/),
      "Wrong referrer after pushState.  Expected newpage1.html, but was " +
      iframeCw.document.referrer);
   /*
    * We're back at file_bug500328_1.html.  Now do the following:
    *   * replaceState to newpage2.html#foo
    *   * Click a link back to file_bug500328_1.html
    * The referrer should be newpage2.html, without the hash.
    */
   iframeCw.history.replaceState(null, null, "newpage2.html#foo");
   enableChildLoadCallback();
   sendMouseEvent({type:'click'}, 'link-self', iframeCw);
   yield undefined;
   ok(iframeCw.document.referrer.toString().match(/newpage2.html$/),
      "Wrong referrer after replaceState.  Expected newpage2.html, but was " +
      iframeCw.document.referrer);
   /*
    * Set up a cycle with the popstate event to make sure it's properly
    * collected.
    */
   var evt = document.createEvent("popstateevent");
   evt.initEvent("foo", false, false, evt);
   /* */
   SimpleTest.finish();
   statusMsg("********** Finished tests ***********");
   while(true)
   {
     yield undefined;
     // I don't think this will actually make the mochitest fail, but there's
     // not much we can do about this.  Realistically, though, regressions are
     // not likely to fire extra events -- this trap is here mostly to catch
     // errors made while wriring tests.
     ok(false, "Got extra event!");
   }
   /*
   statusMsg("XXXXXXXXXXXXXX");
   while(true) {
     yield undefined;
     statusMsg("Woken up.");
   }
   */
 }
 // Important: Wait to start the tests until the page has loaded.  Otherwise,
 // the test will occasionally fail when it begins running before the iframes
 // have finished their initial load of about:blank.
 window.addEventListener('load', function() {
   gGen = runTest();
   gGen.next();
 }, false);
 </script>
 </pre>
 </body>
 </html>

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