Fixed #36467 -- Removed leading whitespaces from Set-Cookie header values in WSGIHandler.

This also aligned the Set-Cookie logic in the WSGIHandler and ASGIHandler.

Co-authored-by: Sarah Boyce <42296566+sarahboyce@users.noreply.github.com>

2 files changed, 20 insertions, 0 deletions

diff --git a/tests/wsgi/tests.py b/tests/wsgi/tests.py
index 39d72d7697..cbc7e79663 100644
--- a/tests/wsgi/tests.py
+++ b/tests/wsgi/tests.py
@@ -49,6 +49,19 @@ class WSGITest(SimpleTestCase):
             ],
         )
 
+    def test_wsgi_cookies(self):
+        response_data = {}
+
+        def start_response(status, headers):
+            response_data["headers"] = headers
+
+        application = get_wsgi_application()
+        environ = self.request_factory._base_environ(
+            PATH_INFO="/cookie/", REQUEST_METHOD="GET"
+        )
+        application(environ, start_response)
+        self.assertIn(("Set-Cookie", "key=value; Path=/"), response_data["headers"])
+
     def test_file_wrapper(self):
         """
         FileResponse uses wsgi.file_wrapper.
diff --git a/tests/wsgi/urls.py b/tests/wsgi/urls.py
index b924adea41..970130624a 100644
--- a/tests/wsgi/urls.py
+++ b/tests/wsgi/urls.py
@@ -6,7 +6,14 @@ def helloworld(request):
     return HttpResponse("Hello World!")
 
 
+def cookie(request):
+    response = HttpResponse("Hello World!")
+    response.set_cookie("key", "value")
+    return response
+
+
 urlpatterns = [
     path("", helloworld),
+    path("cookie/", cookie),
     path("file/", lambda x: FileResponse(open(__file__, "rb"))),
 ]