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I have provided one social auth link in my website ,my problem is if i logged in through facebook and logged out from my application but still facebook's c_user cookie is there .How to delete cookie from other domain,because it keeps track of the user.I am using java.

Rahul Singh
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  • you can see this in stackoverflow website itself. – Rahul Singh Jan 10 '13 at 21:24
  • More elaborate answers and possible semi-solutions can be found [in this stackoverflow question](http://stackoverflow.com/questions/8828221/cant-logout-of-my-facebook-oauth-session-without-logging-user-out-of-facebook) – ilias Jan 13 '13 at 16:57

3 Answers3

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Situation: A feature on your website allows visitors to log in using their Facebook account. When the user logs out of your application, the c_user cookie from Facebook still exists in your user's browser after being set by Facebook.

Problem: You don't want Facebook to continue tracking your users' movements with it's c_user cookie after they have logged out.

Solution: Due to the web browsers and cookies work it's impossible for your website to control what cookies Facebook places in your user's web browser. The best you can do is to tell your users to clear their browser's c_user cookie.

jmkeyes
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  • Is it right to tell your users to clear the cookies? Yes and no. Most people will ignore it so it's of limited benefit. – jmkeyes Feb 20 '13 at 04:43
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Redirect the WebBrowser to facebook.com/logout.php?confirm=1

  • This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post. – Roman C Jan 13 '13 at 21:48
  • What clarification is implied here? –  Jan 13 '13 at 21:50
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"How to delete cookie from other domain?".

You can not delete a cookie from another domain. Not without a huge security hole.

Could you explain why you even want to do this? What kind of problems does this cookie cause?

Jani Hyytiäinen
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  • this cookie tracks the facebook user session,even u logout from original application it keeps the fb user logged in. – Rahul Singh Feb 20 '13 at 03:06