# Rails keep adding \_session\_id in redirect..why?

**URL:** <https://www.ruby-forum.com/t/rails-keep-adding-session-id-in-redirect-why/103058>\
**Category:** Rails\
**Created:** [May 1, 2007, 9:59am UTC](https://www.ruby-forum.com/t/rails-keep-adding-session-id-in-redirect-why/103058 "2007-05-01T09:59:34Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Helene\_Jonsson](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/h/e56c9b/32.png) [@Helene\_Jonsson](https://www.ruby-forum.com/u/Helene_Jonsson)\
**Post date:** [May 1, 2007, 9:59am UTC](https://www.ruby-forum.com/t/rails-keep-adding-session-id-in-redirect-why/103058/1 "2007-05-01T09:59:34Z")

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Hi:

Thanks to Russell N. I could redirect from one rails app to another  
app.  
But during redirect… rails add an extra session key. Which is not in  
my app at all. i.e my session name is \_myapp\_session\_id and both of my  
have the same session key as well as the session-domain set to  
“.domain.com”.

But during re-direct I get an extra session key “\_session\_id”… why do i  
get this? what does this mean and where can i find a bit more  
information about it. Any hint…/help…

Cheers