utility.js

function globalEval(text) {
	/**
	 * Modified version of runScriptText() from FuseJS
	 * Copyright (c) 2008-2010 John-David Dalton, https://github.com/jdalton/fusejs
	 *
	 * FuseJS is distributed under an MIT license. <https://github.com/jdalton/fusejs>
	 */
	var suid = _.uniqueId('fused_'),
			script,
			result,
			head;

	if (text && text !== '') {
		CloudFlare[suid] = {'text': String(text)};
		head = document.getElementsByTagName('head')[0];
		text = 'CloudFlare.' + suid + '.returned=eval(' +
			'CloudFlare.' + suid + '.text);';
		text = 'if("arguments" in this){' + text +
			'}else{arguments=void 0;' + text +
			'delete arguments}';

		script = document.createElement('script');
		script.async = true;
		(script.firstChild || script.appendChild(script.ownerDocument.createTextNode(''))).data = text === null ? '' : text;
		head.insertBefore(script, head.firstChild);
		head.removeChild(script);

		result = CloudFlare[suid].returned;
		delete CloudFlare[suid];
	}
	return result;
}