cancel-request-on-route-change.js

angular
  .module('home', [])
  .controller('home_ctrl', function ($scope, $q, $http) {
    $scope.title = 'Home';

    let vm = $scope;

    let cancelador = $q.defer();

    vm.buscar = () => {

      const request = $http.get('http://127.0.0.1:8081/index', { params: { de: 1 }, timeout: cancelador.promise });

      var promise = request.then(
        response => {
          console.log('ok')
        },
        error => {
          console.warn('Errr')
        }
      );
    };

    vm.cancelar = () => {
      cancelador.resolve();
      cancelador = $q.defer();
    };

    vm.$on('$routeChangeStart', () => {
      vm.cancelar()
    })

  });