Currently the "hot networks" column is showing wrong icons for some, but not all of the sites. (The URLs linked to have the correct site).

It seems to happen only on some sites -- I see it on Mathematics and Travel but not here, for example. It happens both in Firefox and Chrome for me. This screenshot is from the math.SE homepage in a fresh Chrome session. I don't usually use Chrome to access SE, so I doubt it is something getting stuck in a browser cache.


The icons for Academia, Ask Ubuntu and Ask Different are right, but "Why doesn't Cersei make peace with Jon Snow" is definitely not a Music question. Neither is "Why did Neo even have to fight?" really about Information Security ... hmm, it might be, but the actual question is on Scifi.

It also affects the navigation and global inbox dropdowns, when I view them on a site that has the problem.

The site's actual favicon is not affected.

  • And questions about indicating interest in going places isn't IoT... Probably IPS... Weird bug
    – ItamarG3
    Commented Aug 2, 2017 at 21:24
  • Server caching insanity... it happens sometimes, always fixing itself soon after. Commented Aug 2, 2017 at 21:27
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    Needs freehand circles. Commented Aug 2, 2017 at 21:44
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    Is it still happening? We kicked the CDN caches a while ago, but I never saw the out of order icons, so it's hard to confirm the fix.
    – Adam Lear StaffMod
    Commented Aug 3, 2017 at 2:01
  • Is it just me or is that the old SO logo?
    – Andrew Li
    Commented Aug 3, 2017 at 3:46
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    @AdamLear It is still happening. Currently the following has wrong icons: Board & Card games, English language and usage, Italian language, Role-playing games (you can check yourself by opening the all sites dropdown). Interestingly, Meta Stack Overflow has the wrong icon too when viewed from the dropdown on Stack Overflow, but has the right icon when viewed from dropdown on Meta SO itself.
    – GSerg
    Commented Aug 3, 2017 at 7:40
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    @AdamLear: Still happening for me too, freshly booted machine. Commented Aug 3, 2017 at 8:06
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    Same..., and this is post-cookie clearing, on multiple systems (4 out of 4 different Windows machines). Commented Aug 3, 2017 at 11:05
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    If you go to cdn.sstatic.net/img/favicons-sprite16.png?v=0b5182b5ddfc (and zoom in :)), do you see the Aug favicon? The list is sorta alphabetical by site, so it should be in the top part of the image, right below Ask Ubuntu and A for Astronomy. (cc @GhotiandChips)
    – Adam Lear StaffMod
    Commented Aug 3, 2017 at 15:43
  • @AdamLear: Curiouser and curiouser: I don't see Aug when I click on the link in Firefox (and then save the image), but when I copy the URL and download with wget instead, it is there just above Aviation ... I suppose an old version could be stuck in Firefox's cache (though I have cleared that several times), but then why am I only seeing wrong icons on some of the sites? Commented Aug 3, 2017 at 15:52
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    curl downloads the correct image; Chrome and IE both download the old one without Aug. The browser behavior is unaffected by Ctrl-F5. Commented Aug 3, 2017 at 15:59
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    @AdamLear: Following more testing, I get the wrong version of the image with wget if and only if I send an Accept-Encoding: gzip header in the HTTP request. Commented Aug 3, 2017 at 16:28
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    @HenningMakholm We purged the cache again. Did that help?
    – Adam Lear StaffMod
    Commented Aug 3, 2017 at 17:28
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    @AdamLear: Yes, looks like it. Commented Aug 3, 2017 at 17:30
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    @Arthur: Yes, it picks logos at the right place from an old sheet of logos (see the link Adam Lear posted above), so what it displays is mostly off-by-one according to the mostly-alphabetic order. Commented Aug 4, 2017 at 10:56

1 Answer 1


The problem seems to have been fixed now after @Adam Lear purged the cache.

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    It's back. I took this screenshot 15 minutes ago. It's happened to me several times these last days.
    – Arthur
    Commented Aug 4, 2017 at 6:56
  • Encountered the same: Workplace > Worldbuilding icon, Worldbuilding > Default W, SciFi > Security, and so on. Either opening the favicon sprite png or a hard refresh resolved it.
    – Lilienthal
    Commented Aug 4, 2017 at 9:03
  • @Arthur: Does hard-refreshing (ctrl-F5 in most browsers) help? Have you seen it work correctly (on the same machine) after Adam Lear wrote that he purged the cache? Commented Aug 4, 2017 at 10:53
  • @HenningMakholm I hadn't been on that exact question before that time, but it's still there, and a refresh didn't help, although of course, the exact list of questions has changed since then. This is the page I screengrabbed from.
    – Arthur
    Commented Aug 4, 2017 at 11:02
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    @Arthur: Which precise page you're viewing doesn't matter (if it is the same bug recurring). But it does matter whether you do a normal refresh (F5) or a hard refresh (Ctrl-F5). If even hard-refreshing doesn't help, try loading cdn.sstatic.net/img/favicons-sprite16.png?v=0b5182b5ddfc which Adam Lear linked to and hard-refreshing that. Commented Aug 4, 2017 at 11:05
  • Oh, hard refresh is something different, I see. Yes, that helped.
    – Arthur
    Commented Aug 4, 2017 at 11:06
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    @HenningMakholm I'm seeing this happen now. I've tried hard-refreshing, but the issue continues. Commented Dec 4, 2017 at 16:44

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