Today I observed one peculiar behaviour regarding the Stack Overflow home page message.

See the images for Internet Explorer and chrome.

In IE IE screenshot with login

In Chrome Chrome screenshot with login

Why this message difference? I have cleared y cache and checked but is it not surprising?

  • You were logged in on IE and not in Chrome? Try it again but keep the top bar in your images. – user1228 Oct 8 '15 at 18:10
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    I wasn't logged on ie or chrome – Navoneel Talukdar Oct 8 '15 at 18:21
  • And I think this is bug – Navoneel Talukdar Oct 8 '15 at 18:22
  • I'm sure you're not lying, but I need to search the pudding for the proof, if you don't mind. – user1228 Oct 8 '15 at 18:23
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    Might be A/B testing... – rene Oct 8 '15 at 18:41

This is an A/B test we are running, comparing two variations of the hero unit shown on Stack Overflow to anonymous users.

You're seeing two different pages because your browsers were placed in different groups (obviously, we do not track you across browsers!).

You should see different messages on the question page hero unit too, by the way.

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  • 1
    Just curious: Why is this called hero unit? – Wrzlprmft Oct 8 '15 at 20:13
  • We are all hero's @Wrzlprmft, because we keep coming back despite being pushed from A to B ... ;) – rene Oct 8 '15 at 20:22
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    @Wrzlprmft Wish I could tell you, but that name predates me here. I strongly suspect we used it because that's what bootstrap called it at that time. Why did bootstrap call it this way, though... Who knows! – Thomas Orozco Oct 8 '15 at 21:33
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    @Wrzlprmft We're probably misusing it somewhat, but "hero" is a web design term. – Adam Lear Oct 8 '15 at 22:14
  • Looks like the hero unit was renamed to Jumbotron in some recent Bootstrap update, see here. :) /cc @Wrzlprmft. – Shadow Wizard Wearing Mask Oct 9 '15 at 6:03

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