How to read the url fragment using Dart Shelf?

Question

I am trying to create a server using Dart Shelf, and on one path I want to read the data or params after the '#', i.e the fragment. But I am unable to do so, I have been trying the following:

app.get('/', (Request request) {
  print(request.requestedUri.fragment);
});

But this returns an empty string.

Edit:- My path for the get request I am making is: http://localhost:8000/#code=asdfd