Same origin policy ?

Hi,

First thanks to the dev team who has brought a really good tool.
Now, my problem

The technology i'm working on works on two different modes :
Developpment : A simple webserver is started on a port on the local host, all urls are rewritten so that resources are provided by a kind of servlet, so that direct access through URLs are not possible.
Deployment: Standard working mode with a webserver, resources are served normally by the webserver.

On deployment mode, I have no problem working with FCKEditor, everything runs fine. On developpment mode it's another story.
As requests are rewritten it is impossible for FCKEditor to load its dependencies.

So I installed a webserver on my local machine to serve FCKEditor files to avoid the developpment mode problems.
My webapp's base url is http://127.0.0.1:8888/.... and loads scripts from http://127.0.0.1/
I modified fckeditor.html and fckeditor_gecko.js in order to load resources from the complete urls.
This results in a blank IFrame.

Inspecting the dom with firefox shows that the scripts are linked to the iframe's content but it seems that they are not loaded (I have error messages like FCKBrowserInfo undefined)

Any clue?

Thanks