Dump Response Headers with CasperJS

casper-dump-headers.js

var casper = require('casper').create();
casper.start();

casper.open('http://borisschapira.com/');

casper.then(function dumpHeaders(){
  this.currentResponse.headers.forEach(function(header){
    console.log(header.name +': '+ header.value);
  });
});


casper.run(function(){
  this.exit();
});

I am using phantom js as well as caspersj. I am trying to do it like this to display the cookies:

var url = 'https://google.com';
casper.thenOpen(Url, function() {
var cookies = page.cookies;
console.log('Listing cookies:');
for(var i in cookies) {
console.log(cookies[i].name + '=' + cookies[i].value);
};
)