title: Google URL Shortner cURL returns error
body: <p>I have a API Key and tried to use it for shortening URL. If I shorten google.com then I get shorten url</p>
  
  <pre><code>curl https://www.googleapis.com/urlshortener/v1/url?key=MYKEY  -H 'Content-Type: application/json' -d '{"longUrl": "www.google.com"}'
  
  {
   "kind": "urlshortener#url",
   "id": "shorten url",
   "longUrl": "http://www.google.com/"
  }
  </code></pre>
  
  <p>But if I use other URLs like yahoo.com then returns the error</p>
  
  <pre><code>curl https://www.googleapis.com/urlshortener/v1/url?key=MYKEY  -H 'Content-Type: application/json' -d '{"longUrl": "www.yahoo.com"}'
  {
   "error": {
    "errors": [
     {
      "domain": "global",
      "reason": "forbidden",
      "message": "Forbidden"
     }
    ],
    "code": 403,
    "message": "Forbidden"
   }
  }
  </code></pre>
  
  <p>Not sure why?</p>