title: JSON stringify is adding backslashes
body: <p>When the stringified string is sent to request directly, it is not getting added any slashes.</p>
  
  <pre><code>    var data = { "A": "Aa", "B": "Bb", "C": "Cc" }; // This is JSON object
          data = JSON.stringify(data); // Getting stringified
      var obj = {method: "POST", 
                 url: 'http://..XX..XXX.....com',
                 data: data // String is being sent as it is
                };
     $http(obj);// Have no slashes added
  //Output: {"A":"Aa","B":"Bb","C":"Cc"}
  </code></pre>
  
  <p>But if the stringified string is set value as property of object and object is sent to server, the string is having backslashes. </p>
  
  <pre><code>        var data = { "A": "Aa", "B": "Bb", "C": "Cc" };
              data = JSON.stringify(data);
          var obj  = {method: "POST", 
                     url: 'XXX',
                     data: { // String is being sent as a value of object property "Values"
                         "Values": data 
                        }
                    };
         $http(obj);//Slashes are added
  
  //output: {"Values":"{\"A\":\"Aa\",\"B\":\"Bb\",\"C\":\"Cc\"}"}
  </code></pre>
  
  <p>Can somebody take a look once?</p>