title: No JSON object could be decoded after retrieving JSON content using POST without Gzip encoding
body: <p>Using Python 2.7.8 we get "ValueError: No JSON object could be decoded", if running this script:</p>
  
  <pre><code>from urllib2 import urlopen, Request
  from json import dumps, loads, load
  
  values = dumps({
      "issueId": 10600,
      "versionId": "10000",
      "cycleId": "16",
      "projectId": 10000
  })
  headers = {"Content-Type": "application/json"}
  request = Request("http://private-anon-491d363a1-getzephyr.apiary-mock.com/jira_server/rest/zapi/latest/execution", data=values, headers=headers)
  print request.get_method()
  print request.get_header("Content-Encoding")
  
  response = urlopen(request)
  print "\n" + response.read()
  print response.getcode()
  print response.geturl()
  print response.info()
  json = loads(response.read())  # raises ValueError("No JSON object could be decoded")
  </code></pre>
  
  <p>Output is:</p>
  
  <pre><code>POST
  None
  
  {
      "32": {
          "id": 32,
          "executionStatus": "-1",
          "comment": "",
          "htmlComment": "",
          "cycleId": 16,
          "cycleName": "Audit Test Cycle 3",
          "versionId": 10000,
          "versionName": "v1",
          "projectId": 10000,
          "issueId": 10600,
          "issueKey": "ZFJ-19",
          "summary": "test - check1",
          "label": "",
          "component": ""
      }
  }
  200
  http://private-anon-491d363a1-getzephyr.apiary-mock.com/jira_server/rest/zapi/latest/execution
  Server: Cowboy
  X-Apiary-Ratelimit-Limit: 120
  X-Apiary-Ratelimit-Remaining: 119
  Content-Type: application/json
  Access-Control-Allow-Origin: *
  Access-Control-Allow-Methods: OPTIONS,GET,HEAD,POST,PUT,DELETE,TRACE,CONNECT
  Access-Control-Max-Age: 10
  X-Apiary-Transaction-Id: 55423c1c7996e10300e32acc
  Date: Thu, 30 Apr 2015 14:28:45 GMT
  X-Cache: MISS from p-proxy.int.hrs.com
  X-Cache-Lookup: MISS from p-proxy.int.hrs.com:3128
  Via: 1.1 vegur, 1.0 p-proxy.int.hrs.com:3128 (squid/2.6.STABLE6)
  Proxy-Connection: close
  
  Traceback (most recent call last):
    File "test2.py", line 20, in &lt;module&gt;
      json = loads(response.read())  # raises ValueError("No JSON object could be decoded")
    File "C:\Program Files (x86)\python27\lib\json\__init__.py", line 338, in loads
      return _default_decoder.decode(s)
    File "C:\Program Files (x86)\python27\lib\json\decoder.py", line 366, in decode
      obj, end = self.raw_decode(s, idx=_w(s, 0).end())
    File "C:\Program Files (x86)\python27\lib\json\decoder.py", line 384, in raw_decode
      raise ValueError("No JSON object could be decoded")
  ValueError: No JSON object could be decoded
  </code></pre>
  
  <p>I read a lot of Q&amp;A involving aspects like Gzip and <code>requests</code> lib but it was not helpful. How can I decode the response using <code>urlib2</code> and <code>json</code> libs?? If I copy the response into a file and parse the file, it works so it is valid json.</p>