text: const Cc = Components.classes;
  const Ci = Components.interfaces;
  const Cu = Components.utils;
  const Cr = Components.results;
  
  Cu.import("resource://testing-common/httpd.js");
  
  var httpServer = null;
  // Need to randomize, because apparently no one clears our cache
  var randomPath = "/redirect/" + Math.random();
  var randomURI = "http://localhost:4444" + randomPath;
  
  function make_channel(url, callback, ctx) {
    var ios = Cc["@mozilla.org/network/io-service;1"].
              getService(Ci.nsIIOService);
    return ios.newChannel(url, "", null);
  }
  
  const responseBody = "response body";
  
  function redirectHandler(metadata, response)
  {
    response.setStatusLine(metadata.httpVersion, 301, "Moved");
    response.setHeader("Location", "http://localhost:4444/content", false);
  }
  
  function contentHandler(metadata, response)
  {
    response.setHeader("Content-Type", "text/plain");
    response.bodyOutputStream.write(responseBody, responseBody.length);
  }
  
  function finish_test(request, buffer)
  {
    do_check_eq(buffer, "");
    httpServer.stop(do_test_finished);
  }
  
  function run_test()
  {
    httpServer = new HttpServer();
    httpServer.registerPathHandler(randomPath, redirectHandler);
    httpServer.registerPathHandler("/content", contentHandler);
    httpServer.start(4444);
  
    var chan = make_channel(randomURI);
    chan.notificationCallbacks = new ChannelEventSink(ES_ABORT_REDIRECT);
    chan.asyncOpen(new ChannelListener(finish_test, null), null);
    do_test_pending();
  }
  