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One thing I really hate on SE is that, when I want to ask a question about something, and it gets, lets say, moved to another site, I have to click log-in again and enter my open-id again. Can't you guys just make it so that, whenever I login to lets say, SO, I am automatically logged in to the other SE sites (with the associated accounts) by using a cross-domain cookie. This has several advantages:

  • Faster
  • Less HTTP Requests
  • Less human life-time and energy wasted (better for the environment)

It has only one disadvantage (if it is one at all):

  • Stimulates lazyness
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laziness is a virtue, not a vice! –  Ether May 5 '10 at 0:40
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+1 for "quadrilogy" –  Kip May 5 '10 at 1:18
    
i can't parse that last link. what is it? –  quack quixote May 5 '10 at 2:17
    
This sounds like a great idea, but I don't see the advantage over passport.net which works with any site. –  Evan Carroll May 5 '10 at 3:31
    
All this trouble you're going through sounds like a mild punishment for asking a question on the wrong site... (And as for the pentrilogy: SOFU, Meta, stackapps.com, Area51: sounds like hexa then?) –  Arjan Jun 5 '10 at 16:40

2 Answers 2

up vote 4 down vote accepted

While it'd be great if you could, I don't think you can do this with Open ID unfortunately, as it's controlling the authentication and it does so against a specific domain.

I was pretty sure I'd seen this discussed before & came across a dup, where Jeff interestingly said:

Beyond that, we are looking at centralized auth for some.. er.. future.. stuff we're doing, and I did register http://stackauth.com for that general purpose.

I guess we'll have to wait & see what comes out of that...

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Well, SO, MSO, SU and SF use cookies to check if you are logged in right? I can now sign out of Gmail, but still be logged in on the entire quadrilogy. –  rightføld May 5 '10 at 0:39
    
@Koning: Right. Because there's five independent cookies involved, so signing out of Gmail only kills the gmail cookie, not the SOFU ones. –  Alconja May 5 '10 at 0:42
    
yep, so what I want is that the 4 /[SO|MSO|SU|SF]/i cookies become one, cross-domain cookie. –  rightføld May 5 '10 at 0:45

log in to FB to see the comments on the newest post.

Maybe Teh Facebooks should implement universal login, then!

share|improve this answer
    
And you should implement a feature called Facebook Connect ;) –  rightføld May 5 '10 at 0:40
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@koning that's not universal login, that's "my way or the highway" login.. –  Jeff Atwood May 5 '10 at 1:45

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