Win7 IE8 - new tabs require reauthentication...

[duncane]

This is a bit confusing to describe.

 

We recently moved to Windows 7 on a 2008 domain. We're finding that when we open a new tab in IE8 for an authenticated website (eg Moodle, or Outlook Web App) it prompts us reenter the username and password - sometimes very quickly after logging in (i.e. Not a normal timeout).

 

Accessing the same websites from home on a Windows 7 machine has no such issues.

 

It doesn't seem to be a consistent amount of time - sometimes it happens almost instantly, sometimes it doesn't seem to happen at all.

 

I appreciate this is a little vague (I've no idea how to google-fu it), but does anyone have any ideas?

[SYNACK]

IE8 launches tabs in seporate processes, if I remember correctly it groups these under memory constraints into single processes. Could be loosing the auth between processes. I think there is an advanced option in IE8 something along the lines of one process per tab that may help.

[Arthur]

From blogs.msdn.com/b/ie/archive/2009/05/06/session-cookies-sessionstorage-and-ie8.aspx

 

if you click New Window, New Tab, or Duplicate Tab on the File menu, or click on a desktop shortcut, the new tab or window will share session cookies with the original tab. This is called "session merging."

[Arthur]

Another option...

 

blog.httpwatch.com/2009/04/07/seven-things-you-should-known-about-ie-8/

 

TabProcGrowth = 0 - A value of zero means use the same process for all tabs, frames and pop-up windows in each browser session. This makes IE 8 behave just like IE 7 on Windows XP. There’s no frame merging and clicking on the IE icon creates a new instance of iexplore.exe in a separate browser session. Protected mode on Vista is not available with this setting because the IE frame and tabs can only operate at different integrity levels if they are in separate processes. This setting may be useful if you are debugging an IE add-on or if you have automated tests that rely on the IE 7 process model.

 

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main]
"TabProcGrowth"=dword:00000000

[SYNACK]

From blogs.msdn.com/b/ie/archive/2009/05/06/session-cookies-sessionstorage-and-ie8.aspx

 

Yes, thats how it's supposed to work