How browserSync actually works ?

How BrowserSync actually works ?


BrowserSync starts a small Node.js server which injects a script ( as below) into the webpage that it's monitoring.The script makes use of WebSockets to communicate between server and client to watch for changes to the code or browser actions. As soon as BrowserSync detects an action ( either in one browser or a server code) it performs a page reload.


<body>
<script id="__bs_script__">
//<![CDATA[

    document.write("<script async src='/browser-sync/browser-sync-client.2.11.2.js'> <\/script>".replace("HOST", location.hostname));
   
//]]>
</script>
...
...

If you’re already using a local web server or need to connect to a live website, you can start BrowserSync as a proxy server. See how to do this.

Articles related to BrowserSync /Grunt configuration:

0 comments

BrowserSync local server proxy configuration

Integrate BrowserSync - with existing local server :

In this example, I will show how we can configure BrowserSync - Grunt task with you existing existing webapp that is running on a local server.

If you want to know the details on
  • how to configure the BrowserSync and Watch tasks  on Grunt, Please visit my previous post :

The configuration is simple : You just need to let the browserSync to know URL of your local server. 

options: {
         proxy: "local.server-URL"
       }


The final Gruntfile.js file : (full configuration is already described on my earlier blog  post
BrowserSync Grunt configuration - Multi browswer Live Reload )

   
module.exports = function(grunt) {
  // Task configuration will go here
  grunt.initConfig({
   watch: {
  
      },
   browserSync: {
       bsFiles: {
         src: [
           "css/*.css", "js/.js", "./*.html" //search file/folders
         ]
       },
       options: {
         proxy: "local.server-URL" // NEEDS TO BE CONFIGURED
       }
   }
  });
  
  
  // Load tasks dependencies
  grunt.loadNpmTasks('grunt-contrib-watch');
  grunt.loadNpmTasks('grunt-browser-sync');
  
  // Setup default task
  // both browserSync and watch will run when running >grunt command
  grunt.registerTask('default', ['browserSync', 'watch']);

};
0 comments
Subscribe to: Comments ( Atom )