Disable Same-Site cookie implementation to fix SSO issues on WebKit browsers (#9819)

config/initializers/devise.rb

@@ -10,7 +10,6 @@ Warden::Manager.after_set_user except: :fetch do |user, warden|
     expires: 1.year.from_now,
     httponly: true,
     secure: (Rails.env.production? || ENV['LOCAL_HTTPS'] == 'true'),
-    same_site: :lax,
   }
 end
 
@@ -21,7 +20,6 @@ Warden::Manager.after_fetch do |user, warden|
       expires: 1.year.from_now,
       httponly: true,
       secure: (Rails.env.production? || ENV['LOCAL_HTTPS'] == 'true'),
-      same_site: :lax,
     }
   else
     warden.logout

config/initializers/session_store.rb

@@ -1,3 +1,3 @@
 # Be sure to restart your server when you modify this file.
 
-Rails.application.config.session_store :cookie_store, key: '_mastodon_session', secure: (Rails.env.production? || ENV['LOCAL_HTTPS'] == 'true'), same_site: :lax
+Rails.application.config.session_store :cookie_store, key: '_mastodon_session', secure: (Rails.env.production? || ENV['LOCAL_HTTPS'] == 'true')

spec/rails_helper.rb

@@ -29,7 +29,6 @@ Devise::Test::ControllerHelpers.module_eval do
       value: resource.activate_session(warden.request),
       expires: 1.year.from_now,
       httponly: true,
-      same_site: :lax,
     }
   end
 end