mozilla/addon-sdk — pull request #593 by canuckistani (2012-09-28 22:56:00+00:00)
Title: Brian's proposed fix for bug #795490 

Original bug:

https://bugzilla.mozilla.org/show_bug.cgi?id=795490

"Changing the contentURL of a panel does change the location (your content script will be notified of a location change) however it doesn't seem to change the visible page. While there is a test for the panel location changing a panel I don't think it actually tests the change in frame contents."