I followed this to a tee and still don't get the icon to appear. I did modify the code a bit to fit my program but i get a child row to appear and disappear but no icon in the column
https://datatables.net/examples/api/row_details.html
I see in the CSS it has a path to the icon but I didn't download any icons I just used the CDN, is this the issue? Even with one downloaded and placed in my CSS it doesn't appear.