javascript - How request and response event are different from each other in node js? -

i tried simple server in nodejs. expected output of program

server console -

• request recieved 0
• request recieved 1
• request recieved 2
• request recieved 3

client expected response

• you have visited site many times - 0
• you have visited site many times - 1
• you have visited site many times - 2
• you have visited site many times - 3

client actual response

• you have visited site many times - 1
• you have visited site many times - 3

i couldn't understand behavior. , following code ran

//dependencies var http = require('http');  //variables var counter = 0;  //callbacks , functions var requesthandler = function( request , response ) {         console.log('request recieved ' + counter++);         response.writehead(200);         response.end('you have visited site many times - '+counter);     };   //objects var server = http.createserver(requesthandler);   //executions server.listen('8080'); 

what possible reason behavior ?

upon investigating, tried following code on server

console.log(request.url) 

and outputs

/   /favicon.ico   

turns out browser sends 2 requests server.

1. localhost:8080
2. /favicon.ico

this increasing request count 2 whenever page reloaded. here expected requests count 1 actual 2