diff --git a/CHANGES.txt b/CHANGES.txt
index 62a234e0989..e78169d8db4 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -8,6 +8,13 @@ CHANGES
 
 - Don't expose `aiohttp.__version__`
 
+- Add unsafe parameter to CookieJar #968
+
+- Use unsafe cookie jar in test client tools
+
+- Expose aiohttp.CookieJar name
+
+
 0.22.1 (08-16-2016)
 -------------------
 
diff --git a/aiohttp/helpers.py b/aiohttp/helpers.py
index d93d6c5bb21..25758ea4a3d 100644
--- a/aiohttp/helpers.py
+++ b/aiohttp/helpers.py
@@ -27,7 +27,7 @@
 
 
 __all__ = ('BasicAuth', 'create_future', 'FormData', 'parse_mimetype',
-           'Timeout')
+           'Timeout', 'CookieJar')
 
 
 class BasicAuth(namedtuple('BasicAuth', ['login', 'password', 'encoding'])):
@@ -587,9 +587,10 @@ class CookieJar(AbstractCookieJar):
 
     DATE_YEAR_RE = re.compile("(\d{2,4})")
 
-    def __init__(self, *, loop=None):
+    def __init__(self, *, unsafe=False, loop=None):
         super().__init__(loop=loop)
         self._host_only_cookies = set()
+        self._unsafe = unsafe
 
     def _expire_cookie(self, when, name, DAY=24*3600):
         now = self._loop.time()
@@ -608,7 +609,7 @@ def update_cookies(self, cookies, response_url=None):
         url_parsed = urlsplit(response_url or "")
         hostname = url_parsed.hostname
 
-        if is_ip_address(hostname):
+        if not self._unsafe and is_ip_address(hostname):
             # Don't accept cookies from IPs
             return
 
diff --git a/aiohttp/test_utils.py b/aiohttp/test_utils.py
index bb9e784eef4..2c6aa17a684 100644
--- a/aiohttp/test_utils.py
+++ b/aiohttp/test_utils.py
@@ -349,7 +349,10 @@ def __init__(self, app, protocol="http"):
         self._server = None
         if not loop.is_running():
             loop.run_until_complete(self.start_server())
-        self._session = ClientSession(loop=self._loop)
+        self._session = ClientSession(
+            loop=self._loop,
+            cookie_jar=aiohttp.CookieJar(unsafe=True,
+                                         loop=self._loop))
         self._root = '{}://{}:{}'.format(protocol, self._address, self.port)
         self._closed = False
 
diff --git a/docs/client.rst b/docs/client.rst
index 7361d2f80d8..f30503b9525 100644
--- a/docs/client.rst
+++ b/docs/client.rst
@@ -386,6 +386,24 @@ You also can set default headers for all session requests::
 :class:`~aiohttp.ClientSession` supports keep-alive requests
 and connection pooling out-of-the-box.
 
+.. _aiohttp-client-cookie-safety:
+
+Cookie safety
+-------------
+
+By default :class:`~aiohttp.ClientSession` uses strict version of
+:class:`~aiohttp.CookieJar`. :rfc:`2109` explicitly forbids cookie
+accepting from URLs with IP address instead of DNS name
+(e.g. `http://127.0.0.1:80/cookie`).
+
+It's good but sometimes for testing we need to enable support for such
+cookies. It should be done by passing `usafe=True` to
+:class:`~aiohttp.CookieJar` constructor::
+
+
+    jar = aiohttp.CookieJar(unsafe=True)
+    session = aiohttp.ClientSession(cookie_jar=jar)
+
 
 Connectors
 ----------
@@ -421,8 +439,8 @@ In order to specify the nameservers to when resolving the hostnames,
 aiodns is required.
 
     from aiohttp.resolver import AsyncResolver
-    
-    
+
+
     resolver = AsyncResolver(nameservers=["8.8.8.8", "8.8.4.4"])
     conn = aiohttp.TCPConnector(resolver=resolver)