Immediate redirection

Installing the JavaScript

Code:

(function() {
  for (var meta = document.getElementsByTagName('META'), i = 0, j = meta.length; i < j; i++) {
    if (meta[i].httpEquiv && /refresh/i.test(meta[i].httpEquiv)) {
      window.location.href = meta[i].content.replace(/^.*;url=/, '');
      break;
    }
  }
}());