diff -r 000000000000 -r 6474c204b198 netwerk/test/unit/test_bug528292.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/test/unit/test_bug528292.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+Cu.import("resource://testing-common/httpd.js");
+
+const sentCookieVal     = "foo=bar";
+const responseBody      = "response body";
+
+XPCOMUtils.defineLazyGetter(this, "baseURL", function() {
+  return "http://localhost:" + httpServer.identity.primaryPort;
+});
+
+const preRedirectPath   = "/528292/pre-redirect";
+
+XPCOMUtils.defineLazyGetter(this, "preRedirectURL", function() {
+  return baseURL + preRedirectPath;
+});
+
+const postRedirectPath  = "/528292/post-redirect";
+
+XPCOMUtils.defineLazyGetter(this, "postRedirectURL", function() {
+  return baseURL + postRedirectPath;
+});
+
+var   httpServer        = null;
+var   receivedCookieVal = null;
+
+function preRedirectHandler(metadata, response)
+{
+  response.setStatusLine(metadata.httpVersion, 302, "Found");
+  response.setHeader("Location", postRedirectURL, false);
+  return;
+}
+
+function postRedirectHandler(metadata, response)
+{
+  receivedCookieVal = metadata.getHeader("Cookie");
+  response.setHeader("Content-Type", "text/plain");
+  response.bodyOutputStream.write(responseBody, responseBody.length);
+}
+
+function run_test()
+{
+  // Start the HTTP server.
+  httpServer = new HttpServer();
+  httpServer.registerPathHandler(preRedirectPath, preRedirectHandler);
+  httpServer.registerPathHandler(postRedirectPath, postRedirectHandler);
+  httpServer.start(-1);
+
+  // Disable third-party cookies in general.
+  Cc["@mozilla.org/preferences-service;1"].getService(Ci.nsIPrefBranch).
+    setIntPref("network.cookie.cookieBehavior", 1);
+
+  var ioService = Cc["@mozilla.org/network/io-service;1"].
+                  getService(Ci.nsIIOService);
+
+  // Set up a channel with forceAllowThirdPartyCookie set to true.  We'll use
+  // the channel both to set a cookie (since nsICookieService::setCookieString
+  // requires such a channel in order to successfully set a cookie) and then
+  // to load the pre-redirect URI.
+  var chan = ioService.newChannel(preRedirectURL, "", null).
+             QueryInterface(Ci.nsIHttpChannel).
+             QueryInterface(Ci.nsIHttpChannelInternal);
+  chan.forceAllowThirdPartyCookie = true;
+
+  // Set a cookie on one of the URIs.  It doesn't matter which one, since
+  // they're both from the same host, which is enough for the cookie service
+  // to send the cookie with both requests.
+  var postRedirectURI = ioService.newURI(postRedirectURL, "", null);
+  Cc["@mozilla.org/cookieService;1"].getService(Ci.nsICookieService).
+    setCookieString(postRedirectURI, null, sentCookieVal, chan);
+
+  // Load the pre-redirect URI.
+  chan.asyncOpen(new ChannelListener(finish_test, null), null);
+  do_test_pending();
+}
+
+function finish_test(event)
+{
+  do_check_eq(receivedCookieVal, sentCookieVal);
+  httpServer.stop(do_test_finished);
+}