SID-00337: Login redirect loop with IE7

Status:	Answered	TWiki version:	4.3.1	Perl version:	5.10.0
Category:	CategoryAccessControl	Server OS:	WinXP	Last update:	16 years ago

I've successfully installed TWiki 4.3.1 on a WinXP machine with Apache2.2 and Cygwin. Configure shows no warnings or errors. All works well, except that I cannot login with IE7. Other browsers work. With IE7, a proper login results in a redirect back to the login screen. Any suggestion on how to debug this problem?

-- DavidBuntin - 2009-05-27

Discussion and Answer

BTW, I was able to login to TWiki.org with IE7 in order to post this question. Could it have something to do with the fact that I've never logged into TWiki.org with another browser? Is browser switching an issue?

-- DavidBuntin - 2009-05-27

Browser switching (logging into the same account from different browsers) seems to work as expected on TWiki.org. Login with IE7 seems to work well on TWiki.org.

So how should I debug the IE7 login loop problem on my instance of TWiki?

-- DavidBuntin - 2009-05-27

Not sure. See related ContinuallyPromptedToLogin, LoggingInTakesMultipleAttempts

-- PeterThoeny - 2009-05-27

Thanks Peter. I found the cause/solution...

IE7 cannot properly manage cookies and browser sessions are broken when the web domain name includes an underscore. Read the following for more info on this bug: http://blogs.creative-jar.com/post/Session-Cookies---Bug-in-IE7.aspx

In my case, I was using an internal WinXP machine with a computer name that contains an underscore as my TWiki server. The underscore in the TWiki URL exposed this bug in IE7. I solved the problem by renaming the computer.

Thanks for your help.

-- DavidBuntin - 2009-05-28

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