I think I've figured out what the problem is, but I'm not sure how to fix it.
When you switch from WYSIWYG to source view or vice versa, FCKeditor seems to be going through the code element by element and copying it using XML DOM. The problem here is that when doing this, IE doesn't return the SRC or HREF attribute as it is in the code, it returns the "actual" URL of the link or image as it is on the page.
The only workaround I can think of is adding some code into this process that uses the outerHTML property of the element to get the attribute as it was entered. I haven't actually gotten this to work yet, though.
RE: Relative URLs becoming absolute URLs
When you switch from WYSIWYG to source view or vice versa, FCKeditor seems to be going through the code element by element and copying it using XML DOM. The problem here is that when doing this, IE doesn't return the SRC or HREF attribute as it is in the code, it returns the "actual" URL of the link or image as it is on the page.
The only workaround I can think of is adding some code into this process that uses the outerHTML property of the element to get the attribute as it was entered. I haven't actually gotten this to work yet, though.
RE: Relative URLs becoming absolute URLs
RE: Relative URLs becoming absolute URLs
RE: Relative URLs becoming absolute URLs
http://.../fckeditor/editor/..
RE: Relative URLs becoming absolute URLs