title: Site not setting csrftoken cookie when accessing with Python requests
body: <p>I'm trying to log into a site using the <code>requests</code> library and it's not working as it usually does.</p>
  
  <p>I expect the site to send a cookie as it does when accessing via a browser:</p>
  
  <pre><code>csrftoken: Bl5DOVcUge5VeRv771nAIUNbxmm9Z9l2
  </code></pre>
  
  <p>However, all I receive is the following:</p>
  
  <pre><code>__cfduid: d2f8e300a0b867e8a6147462f3977f8b11375815648197 for .example2.net/
  </code></pre>
  
  <p>This one is working as I expect:</p>
  
  <pre><code>agent1 = requests.session()
  agent1.get('https://example1.com/')
  print agent1.cookies
  </code></pre>
  
  <p>Returns:</p>
  
  <pre><code>&lt;&lt;class 'requests.cookies.RequestsCookieJar'&gt;[&lt;Cookie example1session=6ce1fa7fc23669078c9cf86001b34c4f for .example1.com/&gt;, &lt;Cookie countrycode=FR for example1.com/&gt;, &lt;Cookie csrftoken=ETcsKwBgUkPxPjgN6hJaOXv5byIL15mE for example1.com/&gt;, &lt;Cookie lat=46.0 for example1.com/&gt;, &lt;Cookie lon=2.0 for example1.com/&gt;]&gt;
  </code></pre>
  
  <p>This one doesn't:</p>
  
  <pre><code>agent2 =  requests.session()
  agent2.get('https://www.example2.net')
  print agent2.cookies
  </code></pre>
  
  <p>It returns:</p>
  
  <pre><code>&lt;&lt;class 'requests.cookies.RequestsCookieJar'&gt;[&lt;Cookie __cfduid=d14644e3e542bf4165a0714c0e77d04eb1375816707171 for .example2
  </code></pre>
  
  <p>This <code>__cfduid</code> cookie is to do with CloudFlare DDOS protection service the site runs behind. Could this have something to do with the problem?</p>