Usually I stalk the JavaScript tags of StackOverflow and I just recently changed residence. From where I was from, StackOverflow usually pops in new questions live with that gray bar saying "N new questions". Clicking it loads the new questions on the same page.

Now, that I'm in my new residence, when I stalk that section, I notice that no "gray bar" happens. Sometimes it does, sometimes it doesn't. I often times click the "newest" tab only to find out it loads 20+ questions. The gray bar never appeared.

Is there some issue regarding this?

  • 1
    Never saw that gray bar at stackoverflow, only here on meta.
    – Zuul
    Jun 4, 2012 at 21:51
  • Perhaps you're behind a proxy that kills the websockets now? Jun 4, 2012 at 22:08
  • 2
    @Zuul Stack Overflow has the grey bar on the /questions/tagged pages, but not on the main page. Jun 4, 2012 at 22:23
  • No repro - just checked Java, and sure enough - a notification of new activity.
    – Makoto
    Jun 4, 2012 at 22:27
  • @DanielFischer yes, on the tag pages. It shows up sometimes, and sometimes it doesn't
    – Joseph
    Jun 4, 2012 at 22:57
  • So, @Joseph, the server times on that test page keep updating, even when keeping the page open for a long time, right? If you know where to find it, the Network tab in Web Inspector or Firebug might reveal if the connection is started okay (which should show 101 Switching Protocols for ws://sockets.ny.stackexchange.com/). I don't think transmission can easily be faulty, given it's TCP/IP. (But then: Stack Exchange is using its home grown implementation; not sure at what network level that starts.)
    – Arjan
    Jun 5, 2012 at 6:09
  • @Arjan I tested 2 times and checked Dev Tools, 4 and 6 socket connections respectively. They all show success, but the console writes Unexpected response code: 503 for each request.
    – Joseph
    Jun 5, 2012 at 19:35

1 Answer 1


Web sockets are enabled for Stack Overflow on tag pages only. I have confirmed they are working, you might want to check if your network is allowing web socket traffic.

  • Yes, I meant the tag pages. I use the same browser and OS in both places. The only difference would be the ISP. Could the ISP be blocking it?
    – Joseph
    Jun 4, 2012 at 23:01
  • 1
    No idea - you can try: websocketstest.com to get a pretty good idea if web sockets are working. Jun 4, 2012 at 23:07
  • Any chance you're on wireless, @Josepp, and might be switching from one access point to the other? Be sure to see the server time change as long as you have http://websocketstest.com open.
    – Arjan
    Jun 5, 2012 at 3:17
  • @Arjan nope, im wired. And all green on the socket tests by Geoff. Could it be just failed transmissions?
    – Joseph
    Jun 5, 2012 at 4:33

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