UnityWebRequest object downloadhandler.text not returning same/all data compared to browser

 WWWForm form = new WWWForm();

 form.AddField("username", "admin");
 form.AddField("password", "pass");
 form.AddField(key1, value1);
 form.AddField(key2, value2);
 form.AddField(key3, value3);

 string realToken = "";

 using (UnityWebRequest www = UnityWebRequest.Post(tokenURL, form))
 {
     yield return www.SendWebRequest();

     if (www.isNetworkError || www.isHttpError)
     {
         Debug.Log(www.error);
     }
     else
     {
         byte[] token = www.downloadHandler.data;
         string result1 = Encoding.Default.GetString(token);
         string result = System.Text.Encoding.UTF8.GetString(token);

         Debug.Log(www.downloadHandler.text);
         Debug.Log("result1 = " + result1);
         Debug.Log("result = " + result);
     }
 }

Unity's output:

{"token":"HaFfPZi3GRhJJDbIdH6Oze2o0ToctdU7-nnzIhnWyZA.","expires":1528242946005}

result1 = {"token":"HaFfPZi3GRhJJDbIdH6Oze2o0ToctdU7-nnzIhnWyZA.","expires":1528242946005}

result = {"token":"HaFfPZi3GRhJJDbIdH6Oze2o0ToctdU7-nnzIhnWyZA.","expires":1528242946005}

what i want is the long "HaFfPZ....." string but it always ends with a '.' (w$$anonymous$$ch is never in the browser value) and cuts off the remaining data for that value. For example the same data in the browser would look somet$$anonymous$$ng like

{"token":"HaFfPZi3GRhJJDbIdH6OzWy0JIOYDJ84ABYvu9pBcOQVnXPdltJhn0ILjBdpZp8Z","expires":1528243370083}

it seems the unity value there returns around 43 characters, and the browser value returns 64 characters.

any ideas?

thanks in advance