title: QueryReadStore loads JSON into DataGrid, but JsonRestStore does not (from the same source)
body: <p>I'm building a Dojo DataGrid from JSON data provided by my REST interface. The DataGrid loads the data fine using a QueryReadStore, but doesn't seem to work with the same same data piped into a JsonRestStore.</p>
  
  <p>I'm using the following Dojo libs with Dojo 1.4.1:</p>
  
  <pre><code>dojo.require("dojox.data.JsonRestStore");
  dojo.require("dojox.grid.DataGrid");
  dojo.require("dojox.data.QueryReadStore");
  dojo.require("dojo.parser");
  </code></pre>
  
  <p>I declare my stores in the following manner:</p>
  
  <pre><code>var storeJRS = new dojox.data.JsonRestStore({target:"api/collaborations.php/1"});
  var storeQRS = new dojox.data.QueryReadStore({url:"api/collaborations.php/1", requestMethod:"get"});
  </code></pre>
  
  <p>I create my grid layout like this:</p>
  
  <pre><code>var gridLayout = [
  new dojox.grid.cells.RowIndex({ name: "Row #", width: 5, styles: "text-align: left;" }),
  {
  name: "Name",
  field: "name",
  styles: "text-align:right;",
  width:20
  },
  {
  name: "Description",
  field: "description",
  width:30
  }
  ];
  </code></pre>
  
  <p>I create my DataGrid as follows:<br>
      <code>&lt;div dojoType="dojox.grid.DataGrid" jsid="grid2" store="storeQRS" structure="gridLayout" style="height:500px; width:1000px;"&gt;&lt;/div&gt;</code></p>
  
  <p>The above works, but if I use QueryReadStore as my store, the grid is created with the headers (Name, Description), but it isn't populated with any rows:<br>
  <code>&lt;div dojoType="dojox.grid.DataGrid" jsid="grid3" store="storeQRS" structure="gridLayout" style="height:500px; width:1000px;"&gt;&lt;/div&gt;</code></p>
  
  <p>Using FireBug, I can see that QueryReadStore is getting my JSON data from my REST interface. It looks like the following:</p>
  
  <pre><code>{"numRows":6,"items":[{"name":"My Super Cool Collab","description":"This is for all the super cool people in the super cool group","id":1},{"name":"My Other Super Cool","description":"This is for all the other super cool people","id":3},{"name":"This is another coll","description":"This is just some other collab","id":4},{"name":"some new collab","description":"this is a new collab","id":5},{"name":"yet another new coll","description":"uh huh","id":6},{"name":"asdf","description":"asdf","id":7}]}
  </code></pre>
  
  <p>Any ideas? Thanks.</p>