I cannot seem to get columns sorting to work on my project. I have also tried using your basic example and can’t seem to get it to work there either. I have attached a screenshot of literally your basic example with just that one option turned on, but clicking on the top of the column has not effect.
when you want o use: filters, dropdown menu, resizing and moving columns … and the sorting you need to enable the colHeaders by passing true.
If you need custom names (by default it is A, B, C,… you should pass the names for headers in string like in this example https://jsfiddle.net/handsoncode/ncqjwomr/ (line 20).