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-rw-r--r--actionpack/lib/action_controller/session/cookie_store.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/actionpack/lib/action_controller/session/cookie_store.rb b/actionpack/lib/action_controller/session/cookie_store.rb
index 0a2a91f01e..5e5ef1bfb0 100644
--- a/actionpack/lib/action_controller/session/cookie_store.rb
+++ b/actionpack/lib/action_controller/session/cookie_store.rb
@@ -117,7 +117,7 @@ class CGI::Session::CookieStore
def delete
@data = nil
clear_old_cookie_value
- write_cookie('value' => '', 'expires' => 1.year.ago)
+ write_cookie('value' => nil, 'expires' => 1.year.ago)
end
# Generate the HMAC keyed message digest. Uses SHA1 by default.