> POST /o/oauth2/token HTTP/1.1
> Soup-Debug-Timestamp: 1411296464
> Soup-Debug: SoupSession 1 (0x1888370), SoupMessage 1 (0x1aceb90), SoupSocket 1 (0x1a43670)
> Host: accounts.google.com
> Content-Type: application/x-www-form-urlencoded
> Accept-Encoding: gzip, deflate
> User-Agent: libgdata/0.16.1 - gzip
> Connection: Keep-Alive
> 
> client_id=352818697630-nqu2cmt5quqd6lr17ouoqmb684u84l1f.apps.googleusercontent.com&client_secret=-fA4pHQJxR3zJ-FyAMPQsikg&code=test&redirect_uri=urn%3Aietf%3Awg%3Aoauth%3A2.0%3Aoob&grant_type=authorization_code
  
< HTTP/1.1 400 Bad Request
< Soup-Debug-Timestamp: 1411296464
< Soup-Debug: SoupMessage 1 (0x1aceb90)
< Content-Type: application/json
< Cache-Control: no-cache, no-store, max-age=0, must-revalidate
< Pragma: no-cache
< Expires: Fri, 01 Jan 1990 00:00:00 GMT
< Date: Sun, 21 Sep 2014 10:47:44 GMT
< Content-Encoding: gzip
< X-Content-Type-Options: nosniff
< X-Frame-Options: SAMEORIGIN
< X-XSS-Protection: 1; mode=block
< Server: GSE
< Alternate-Protocol: 443:quic,p=0.002
< Transfer-Encoding: chunked
< 
< {
<   "error" : "invalid_grant"
< }