Rendering page with PhantomJS with custom dimensions (not possible w/o hack)

render.js

console.log('Usage: phantomjs render.js URL [width=1024] [height=768] [out=render.png]');

var args = require('system').args;
if (args.length < 2) {
  phantom.exit();
}

var page = require('webpage').create();

var rect = page.clipRect = {
	left: 0,
	top: 0,
	width: args[2] || 1024,
	height: args[3] || 768
};

console.log('Loading in ' + rect.width + 'x' + rect.height + ' frame');

page.onCallback = function () {
	var filename = args[4] || 'render.png';
	console.log('Rendering to ' + filename)
	page.render(filename);
	phantom.exit();
};

page.open('data:text/html,<iframe id="frame" style="position: absolute; left: 0; top: 0; border: 0; width: ' + rect.width + 'px; height: ' + rect.height + 'px"></iframe>', function () {
	page.evaluate(function (url) {
		var frame = document.getElementById('frame');
		frame.onload = function () {
			callPhantom();
		};
		frame.src = url;
	}, args[1]);
});