This behavior was originally reported over 4 years ago and has not received significant demand or follow-up from the community since then. Considering this and the availability of a workaround, we are unable to prioritize it over more impactful and widely requested improvements. 

If this limitation is still affecting your scenario, please share additional context or use cases. This will help us better assess the severity and reconsider prioritization in the future. Thank you! 

Regards,
Nikolay
Progress Telerik

Hi Loring,

Thank you for this bug report.

Here you are a workaround for the time being: https://dojo.telerik.com/@iankodj/akaxeceK. 

    var _initResizeHandles = kendo.ui.editor.ElementResizing.fn._initResizeHandles;

    var resizingInProgress = kendo.ui.editor.TableElementResizing.fn.resizingInProgress;
    
    kendo.ui.editor.ElementResizing.fn._initResizeHandles = function(){
      var body = this.options.rootElement;
      if(body.contentEditable === "false") return;
      _initResizeHandles.call(this);
    };

    kendo.ui.editor.TableElementResizing.fn.resizingInProgress = function () {
      var body = this.options.rootElement;
      if(body.contentEditable === "false") return true;
      resizingInProgress.call(this);
    }

Regards,
Ianko
Progress Telerik