This will break the sorting for IE < 11 because the click events will be registering on the `<span>...</span>` or `<i>...</i>` in the column headers instead of the `<th>...</th>` elements. Since we can't assume everyone will be on IE11 or another supported browser version, I will do this in a different way. It doesn't look like IE 11 adaption is as widespread as I had thought...