title: Python urllib2 does not respect timeout
body: <p>The following two lines of code hangs forever:</p>
  
  <pre><code>import urllib2
  urllib2.urlopen('https://www.5giay.vn/', timeout=5)
  </code></pre>
  
  <p>This is with python2.7, and I have no http_proxy or any other env variables set. Any other website works fine. I can also wget the site without any issue. What could be the issue?</p>