I have been using the editor in a community server application and a custom dialogue for a couple of weeks without problems.  To day I moved the editor from a sub-domain to the main domain (with a new license) and now I cannot close the custom dialogue in Internet Explorer. 

I am using window.top.close() tied to a button, which last week worked perfectly.  It works in Chrome without any problems.  In Internet Explorer it tries to close the top (main editor) window  and I get the 'The webpage your are viewing is trying to close the tab' message.  Clicking the 'X' at the top left works. Clicking 'Cancel' on  any of the standard dialogues (i.e. InsertImage) work fine as well. 

Please can you point me in the right direction to finding a solution.