Confirmd that this pull request addresses the Rails CI errors NameError: uninitialized constant CGI::Cookie.

https://buildkite.com/rails/rails-nightly/builds/2248#0196ea59-3eab-4a37-bc05-24126a9ad23d/1181-2640

While I see these 3 tests are failing with Ruby 3.5.0dev.

$ ruby -v
ruby 3.5.0dev (2025-05-19T17:34:29Z master a7ef9a44a6) +PRISM [x86_64-linux]
$ bundle exec ruby -Itest test/spec_mock.rb
Run options: --seed 35143

# Running:

...........................F.....FF

Finished in 0.023080s, 1516.4772 runs/s, 6932.4670 assertions/s.

  1) Failure:
Rack::MockResponse#test_0005_provide access to persistent cookies [test/spec_mock.rb:306]:
--- expected
+++ actual
@@ -1 +1,3 @@
-"persistent_test"
+# encoding: ASCII-8BIT
+#    valid: true
+"p"


  2) Failure:
Rack::MockResponse#test_0004_provide access to session cookies [test/spec_mock.rb:295]:
--- expected
+++ actual
@@ -1 +1,3 @@
-"session_test"
+# encoding: ASCII-8BIT
+#    valid: true
+"s"


  3) Failure:
Rack::MockResponse#test_0006_provide access to secure cookies [test/spec_mock.rb:317]:
--- expected
+++ actual
@@ -1 +1,3 @@
-"secure_test"
+# encoding: ASCII-8BIT
+#    valid: true
+"s"


35 runs, 160 assertions, 3 failures, 0 errors, 0 skips
$

Found something else that was missed in the 2.2 backport, and pushed a commit for it. @yahonda, I apologize, but could you please check again and see if the additional commit fixed it?

Confirmed 12195e9 addresses all of failures reported at #2335 (comment)

@yahonda Thank you very much for your quick testing of this PR.

@ioquatix It looks like these two changes were missed in the backport. I recommend merging this and releasing 2.2.16 with the changes.

3-0-stable is also incomplete. It produces the same failures as in #2335 (comment) and needs 12195e9

It also still uses OpenStruct, so there are other failures on 3.5 since it is now gone for good. The same is also true for 2-2-stable. Should that be handled? For reference: #2004 #2166. It's not a problem for rails tests since some other dep pulls it in.

Sorry folks it sounds like I did a poor job back-porting this fix. Let me take a closer look.

Rack v2.2.16 is released with this PR. Let me know if there are other issues. I'll follow up with a v3.0.x release too if required.

Rack v3.0.18 is released with the Array typecast. It looks like 3.1 is already okay.

Thanks for taking care of it

Sorry I some how dropped the ball on this one.