The Tor Browser / file revision

 Cu.import("resource://testing-common/httpd.js");

 const SERVER_PORT = 8080;

 const baseURL = "http://localhost:" + SERVER_PORT + "/";

 var cookie = "";

 for (let i =0; i < 10000; i++) {

     cookie += " big cookie";

 }

 var listener = {

   onStartRequest: function (request, ctx) {

   },

   onDataAvailable: function (request, ctx, stream) {

   },

   onStopRequest: function (request, ctx, status) {

       do_check_eq(status, Components.results.NS_OK);

       do_test_finished();

   },

 };

 function run_test() {

     var server = new HttpServer();

     server.start(SERVER_PORT);

     server.registerPathHandler('/', function(metadata, response) {

         response.setStatusLine(metadata.httpVersion, 200, "OK");

         response.setHeader("Set-Cookie", "BigCookie=" + cookie, false);

         response.write("Hello world");

     });

     var ios = Components.classes["@mozilla.org/network/io-service;1"]

                          .getService(Components.interfaces.nsIIOService);

     var chan = ios.newChannel(baseURL, null, null)

                   .QueryInterface(Components.interfaces.nsIHttpChannel);

     chan.asyncOpen(listener, null);

     do_test_pending();

 }