onConfirm
Introduced: PhantomJS 1.6
This callback is invoked when there is a JavaScript confirm on the web page. The only argument passed to the callback is the string for the message. The return value of the callback handler can be either true or false, which are equivalent to pressing the “OK” or “Cancel” buttons presented in a JavaScript confirm, respectively.
Examples
var webPage = require('webpage');
var page = webPage.create();
page.onConfirm = function(msg) {
console.log('CONFIRM: ' + msg);
return true; // `true` === pressing the "OK" button, `false` === pressing the "Cancel" button
};