Kendo ui odata request callback not supported

Question

I am working on a odata grid with Kendo UI. The problem is that the ajax request keeps containing a callback parameter. Which causes this error: Callback parameter is not supported. When I do the request manually without the callback, my odata service works perfect. Someone an idea how to fix this? ``` $("#grid").kendoGrid({ dataSource: new kendo.data.DataSource({ type:"odata", serverPaging: true, serverFiltering: true, serverSorting: true, transport: { contentType: "application/json; charset=utf-8", type: "GET", read: "/odata/FestivalSignUps?$inlinecount=allpages&$expand=PrefferedTasks/Task,AvailableDays,ApplicationUser", dataType: "json", parameterMap: function (options, type) { var paramMap = kendo.data.transports.odata.parameterMap(options); delete paramMap.$format; // <-- remove format parameter. return paramMap; } }, pageSize: 10, schema: { data: function (data) { return data["value"]; }, total: function (data) { return data["odata.count"]; }, } }), filterable:true, sortable: tr…

Accepted Answer

I cover this issue and some others in a blog post that I wrote: Server-Side Filtering Using KendoUI With MVC4 WebAPI and OData.

If you are querying your own data, and don't need to do a cross-domain request, we can just not use jsonp. To do this, we just tell Kendo the `dataType` for the read operation is "json".

```
var dataSource = new kendo.data.DataSource({
    type: 'odata', // <-- Include OData style params on query string.
    transport: {
        read: {
            url: "/api/Albums",
            dataType: "json"; // <-- The default was "jsonp".
        }
    }
});
```

Kendo ui odata request callback not supported

Solution

Problem