please can you see and post the inspection result on your browser like
1. goto inspect window and network
2. press the `g:sortablecolumn` and see if anything is posted or a request ?
3. if yes , that is how i can resolve this issue and you should to ..see which
object/parameteris passed to
the controller so that you can play with the code.
4.if not Syntax error please first try with simple settings and correct
to see how it works on 1,2,3 steps.
cheers am sure you will find the solution !!