// ==UserScript==
// @name Blogger "I wish to continue"
// @description Blogger "I wish to continue"
// @author NKid
// @version 2011-12-10
// @include http://www.blogger.com/blogin.g?blogspotURL=*
// ==/UserScript==
if (document.querySelector('iframe'))
location.assign(document.getElementById('injected-iframe').src);
else
location.assign(document.querySelector('.kd-button-bar a:nth-child(1)').href);
Scripting Iframes - Tutorial and Examples
Why is this javascript getting permission denied? - Stack Overflow