Merge pull request #1239 from miikka/fix-issue-1228

Use session cookies when following redirects

requests/sessions.py

@@ -90,7 +90,10 @@ class SessionRedirectMixin(object):
         prepared_request.hooks = req.hooks
         prepared_request.method = req.method
         prepared_request.url = req.url
-        cookiejar = resp.cookies
+
+        cookiejar = cookiejar_from_dict({})
+        cookiejar.update(self.cookies)
+        cookiejar.update(resp.cookies)
 
         # ((resp.status_code is codes.see_other))
         while (('location' in resp.headers and resp.status_code in REDIRECT_STATI)):

test_requests.py

@@ -118,6 +118,12 @@ class RequestsTestCase(unittest.TestCase):
         r = s.get(url)
         self.assertTrue(s.cookies['foo'] == 'bar')
 
+    def test_cookie_sent_on_redirect(self):
+        s = requests.session()
+        s.get(httpbin('cookies/set?foo=bar'))
+        r = s.get(httpbin('redirect/1'))  # redirects to httpbin('get')
+        self.assertTrue("Cookie" in r.json()["headers"])
+
     def test_user_agent_transfers(self):
 
         heads = {