Rails 4 Session across subdomains

Question

I'm trying the following with no luck in an attempt to persist sessions across subdomains:

MyApp::Application.config.session_store :cookie_store, key: '_myapp_session', :domain => :all, :tld_length => 2

MyApp::Application.config.session_store :cookie_store, key: '_myapp_session', :domain => 'myapp.dev'

MyApp::Application.config.session_store :cookie_store, key: '_myapp_session', :domain => '.myapp.dev'

I found all of these combinations on Google and SO.

I saw a few explanations but it involved manually setting the cookie. I'd like to stick with configuration if possible.

Note: I'm using devise. I've also restarted the server and cleared cookies.

The first one should work and is my preferred way to go. Did you try changing the cookie key while testing? I've used this as a "hard reset" in the past. — Jaap Haagmans, Jan 21 '14 at 16:10
changing the cookie while testing? with chrome dev tools or firebug? — orourkedd, Jan 21 '14 at 17:01
I said the cookie key, so changing `_myapp_session` to `_myapp_tmp` for instance. Just to be absolutely sure. — Jaap Haagmans, Jan 21 '14 at 21:07

score 1 · Answer 1 · answered Apr 03 '14 at 12:00

I found that different applications should have identical secret_key_base, located in config/initializers/secret_token.rb. After I did this, all my applications is started to use shared session.

PS. Of course, they should have identical session keys.

Rails 4 Session across subdomains

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