ExpressionEngine v2.7.1 - Build Date: 20130924 Wygwam 3.1.2
If I create a new entry, I am able to click on the "Embed Media" button in the toolbar and paste the YouTube provided embed code, click "Save" and the video inserts without issue.
However, if I edit that entry, or edit another entry and attempt to insert a video in another location, I click the "Embed Media" button in the toolbar and paste the YouTube provided embed code, click "Save" and nothing happens.
In the console window, (Chrome), I get the following:
Uncaught SecurityError: Blocked a frame with origin "http://admin.domain.com" from accessing a frame with origin "http://domain.com". Protocols, domains, and ports must match. ckeditor.js:876
In IE script error window I get:
SCRIPT5: Access is denied. ckeditor.js, line 876 character 99
I don't understand why it works the first go, but not the edit.