I am using Telerik spreadsheet in my web page. I have set the toolbar option to false as it was not needed for my use. When I tried the keyboard short cuts Ctrl + b and Ctrl + i the page console shows an error. I don't know if this creates any issues in the spreadsheet. I tried the same in the Telerik demo with toolbar option set to false and the console shows error in that too. I have attached the screenshot of demo in which I checked. Please take a look at this error as I don't know if it creates any further issues in the spreadsheet.