Where can I fix the config so that instead of "#" in nested links, "#!" is used?

Question

Angular

Hello! I don’t understand anything about this tool, but such a task arose. IF it is trivial and a matter of several operations, then please tell me in which file and in which place this behavior can be corrected.
Now the links look like this (when following nested links):
/lists/210#/items/849
And you need this:
/lists/210#!/items/849
Found in the documentation https://docs.angularjs.org/api/ ng/provider/$locati... (hashPrefix([prefix]);) as I understand it, this is it. But I don't understand where to put it.

Answer 1

...
app.config(['$locationProvider', function ($locationProvider) {
  ...
    $locationProvider.hashPrefix("!");
  ...
}]);