Space is not required for Set-Cookie header

actionpack/CHANGELOG.md

@@ -1,3 +1,7 @@
+*   Ignore spaces around delimiter in Set-Cookie header.
+
+    *Yamagishi Kazutoshi*
+
 *   Remove deprecated Rails application fallback for integration testing, set
     `ActionDispatch.test_app` instead.
 

actionpack/lib/action_dispatch/middleware/ssl.rb

@@ -57,7 +57,7 @@ module ActionDispatch
           cookies = cookies.split("\n")
 
           headers['Set-Cookie'] = cookies.map { |cookie|
-            if cookie !~ /;\s+secure(;|$)/i
+            if cookie !~ /;\s*secure\s*(;|$)/i
               "#{cookie}; secure"
             else
               cookie

actionpack/test/dispatch/ssl_test.rb

@@ -124,6 +124,35 @@ class SSLTest < ActionDispatch::IntegrationTest
       response.headers['Set-Cookie'].split("\n")
   end
 
+
+  def test_flag_cookies_as_secure_with_has_not_spaces_before
+    self.app = ActionDispatch::SSL.new(lambda { |env|
+      headers = {
+        'Content-Type' => "text/html",
+        'Set-Cookie' => "problem=def; path=/;secure; HttpOnly"
+      }
+      [200, headers, ["OK"]]
+    })
+
+    get "https://example.org/"
+    assert_equal ["problem=def; path=/;secure; HttpOnly"],
+      response.headers['Set-Cookie'].split("\n")
+  end
+
+  def test_flag_cookies_as_secure_with_has_not_spaces_after
+    self.app = ActionDispatch::SSL.new(lambda { |env|
+      headers = {
+        'Content-Type' => "text/html",
+        'Set-Cookie' => "problem=def; path=/; secure;HttpOnly"
+      }
+      [200, headers, ["OK"]]
+    })
+
+    get "https://example.org/"
+    assert_equal ["problem=def; path=/; secure;HttpOnly"],
+      response.headers['Set-Cookie'].split("\n")
+  end
+
   def test_flag_cookies_as_secure_with_ignore_case
     self.app = ActionDispatch::SSL.new(lambda { |env|
       headers = {