Global Namespace Evaluation of JavaScript Using Data URIs (DANGEROUS!!!)

globalEval-using-data-uris.js

/**
 * Evaluate a string of JavaScript code in the global namespace.
 * NOTE:  This differs from eval() in that it doesn't return a value.
 * @param {string} code  The JavaScript code to be executed in the global namespace.
 */
function globalEval(code) {
  var script = document.createElement('script');
  script.src = 'data:application/javascript;charset=utf-8,' + encodeURIComponent(code);
  (document.getElementsByTagName('head')[0] || document.body).appendChild(script);
}