Last Updated: 14 May 2024 07:18 by ADMIN
Release 2024 Q2 (May)
Created on: 01 Nov 2023 07:31
Category: UI for ASP.NET MVC
Type: Bug Report
Source mapping does not allow debugging of kendo.all.min.js

Bug report

Reproduction of the problem

  1. Reference kendo.all.min.js and in a project
  2. Add a basic Grid:
<div id="grid"></div>
    // The dataSource is initialized as a stand-alone widget that can be bound to the Grid.
    var dataSource = new{
        transport: {
            read: {
                // The remote endpoint from which the data is retrieved.
                url: "",
                dataType: "jsonp"
        pageSize: 10

        // The dataSource configuration is set to an existing DataSource instance.
        dataSource: dataSource,
        pageable: true
  1. Open the browser's dev tools Source tab and place a breakpoint (e.g., on line 3715).

Current behavior

The breakpoint is added at the last line (326079) of the file.

Expected/desired behavior

The breakpoint is added at the desired line (e.g., 3715).


  • Kendo UI version: 2023.3.1010
  • jQuery version: x.y
  • Browser: [ Chrome XX]
Ivan Danchev
Posted on: 05 Jan 2024 15:01


Currently, no workaround is available, but we've increased the issue's priority. A dev is already assigned to it and will work on a fix.

Ivan Danchev
Progress Telerik

Stay tuned by visiting our public roadmap and feedback portal pages. If you're new to the Telerik family, be sure to check out our getting started resources, as well as the only REPL playground for creating, saving, running, and sharing server-side code.

Posted on: 01 Jan 2024 00:59
Is anything being done about this problem? Is there a workaround? As it stands, I cannot debug Kendo UI source