phantom.clearCookies();
var page = require('webpage').create();
page.onResourceReceived = function(response) {
        var headers = response.headers,
                len = headers.length,
                i = 0;
        for (i=0; i< len; i++) {
                if ( headers[i].name == "Set-Cookie" ) {
                        console.log( JSON.stringify({ cookie: headers[i].value} ));
                }
        }
        var data = page.evaluate( function() {
                if ( !window.mediaWiki ) {
                        return false;
                }
                if ( !mediaWiki.centralNotice ) {
                        return false;
                }
                if ( mediaWiki.centralNotice.choiceData && mediaWiki.centralNotice.data ) {
                        return {
                                data: mediaWiki.centralNotice.data,
                                choiceData: mediaWiki.centralNotice.choiceData,
                                choiceVersion: mediaWiki.loader.getVersion('ext.centralNotice.choiceData')
                        };
                } else {
                        return false;
                }
        } );
        if ( data ) {
                console.log( JSON.stringify( data ));
                phantom.exit();
        }
};
page.open('https://en.wikipedia.org/wiki/Fla-Vor-Ice');