Hot reload problems

gulpfile.js

var gulp            = require('gulp'),
    gutil           = require('gulp-util'),
    browserSync     = require('browser-sync'),
    elixir          = require('laravel-elixir');

    var  b          = elixir.config.js.browserify;


b.plugins.push({
      name: "browserify-hmr",
      options : {}
});

b.transformers.push({
    name: "vueify",
    options : {}
});

elixir(function (mix) {
    mix.browserify('app.js');
    mix.browserSync({
        files: [
            'public/css/*.css',
            'public/*.html'
        ],
        proxy: 'localhost:8888/vueifybaseproject/public'
    });
});