title: Not able to get optimized route from Google Direction Service api
body: <p>I was trying to find the optimized route using google direction api by providing the waypoints.Below are the waypoints i have used
  statring point: LHR
  first waypoint: Hounslow
  second waypoint: harlington</p>
  
  <p>When I tried to find the optimized track using <a href="http://findthebestroute.com/RouteFinder.html" rel="nofollow noreferrer">http://findthebestroute.com/RouteFinder.html</a> below is the response which is the obvious answer and correct.<img src="https://i.stack.imgur.com/dBuZt.png" alt="enter image description here"></p>
  
  <p>But now i would like to perform same in my own application  using directionservice api provided by google. I have prepared the above request as following </p>
  
  <pre><code>Request Url: http://maps.googleapis.com/maps/api/directions/json
  Request Method: GET
  Status Code: 200
  Params: {
      "origin": "LHR",
      "mode": "driving",
      "sensor": "false",
      "departure_time": "1375789483",
      "units": "metric",
      "waypoints": "optimize:true|hounslowl|harlington"
  }
  </code></pre>
  
  <p>and i am getting the wrong response as following which suggest me LHR to Hounslow and to harlingston. I don't know what's wrong with the request i have made. Any help is strongly appreciable. 
  <img src="https://i.stack.imgur.com/2IhdQ.png" alt="enter image description here"></p>