rasterize.sh

#!/bin/bash
> /tmp/cookies.txt
/usr/local/bin/phantomjs --cookies-file="/tmp/cookies.txt" --ssl-protocol=any --ignore-ssl-errors=true /usr/local/bin/screenshot.js $1

screenshot.js

var page = require('webpage').create(),
    system = require('system'),
    address = system.args[1];

page.viewportSize = page.clipRect = {
    width: 1280,
    height: 960
};

page.onError = page.onConsoleMessage = function() {};
page.customHeaders = {
    "Referer": address
};

page.onLoadStarted = function() {
    window.setTimeout(function() {
        phantom.exit(1);
    }, 10000);
};

page.open(address, function(status) {
    page.evaluate(function() {
        document.body.bgColor = 'white';
    });

    if (status == 'success') {
        window.setTimeout(function() {
            page.render('/dev/stdout');
            phantom.exit(0);
        }, 300);
    } else {
        console.log('Page.open returned ' + page.reason);
        phantom.exit(1);
    }

});