RoR gupl-browser-sync

gulpfile.js

var gulp = require('gulp');
var browserSync = require('browser-sync');

var paths = {
  app: ['./app/assets/stylesheets/**/*.scss',
    './app/assets/javascripts/**/*.js',
    './app/assets/javascripts/**/*.coffee',
    './app/views/**/*.haml']
};

gulp.task('dev', function() {

  var reload = browserSync.reload;

  browserSync({
    proxy: 'localhost:3000',
    notify: false,
    open: false
  });

  gulp.watch(paths.app, function() {
    return gulp.src(paths.app)
      .pipe(reload({stream: true}));
  });

});

gulp.task('default', ['dev']);

package.json

{
  "name": "yodo",
  "version": "1.0.0",
  "description": "",
  "directories": {
    "test": "test"
  },
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "repository": {
    "type": "git"
  },
  "author": "",
  "license": "ISC",
  "homepage": "",
  "devDependencies": {
    "browser-sync": "^2.14.0",
    "gulp": "^3.9.1"
  }
}

RoR gupl-browser-sync

npm up -D