I'm trying to generate a JSON output through a view, but when I do I get this weird output in the content property, a shitload of empty JSON.

If I do the same through a regular view in a textarea I get this, which is what I expect.

When I output the Grid in JSON I do like this

@inherits Umbraco.Web.Mvc.UmbracoViewPage
@{
  Layout = null;
  IPublishedContent site = Model;

  var content = (site.HasValue("GridContent")) ? site.Value("GridContent") : null;

  var output = new {
    id = site.Id,
    order = site.SortOrder,
    language = site.GetCultureFromDomains(),
    type = site.ContentType.Alias,
    content = content,
  };

  string json = Json.Encode(output);
  Response.ContentType = "application/json";
} @Html.Raw(json)

And in the textarea template I do like this

@inherits Umbraco.Web.Mvc.UmbracoViewPage
@{
  Layout = null;
  var content = (Model.HasValue("GridContent")) ? Model.Value("GridContent") : null;
  <textarea>@content</textarea>
}

Any ideas on why I get this crappy output when I try in the JSON template ?