Hi there,
Using Firefox (version 36+), the CKEditor doesn't wrap text when you switch it to source code mode. Turns out this is a known issue, documented here: http://drupal.stackexchange.com/questions/151715/how-to-wrap-the-text-in-source-view-of-ckeditor
Two questions:
1. Can you add the code that fixes the issue (.cke_source { white-space: pre-wrap !important; }
) to the standard CSS for the editor.
2. How can I work around this for the time being? I created a file called Editor.css in templates/Designs/Design and added the code. Although it's loaded, it's not applied (I assume it's for the content in the WYSIWYG part of the editor, not the editor itself). It works when I add it to /Admin/Content/ParagraphEdit.css but that'll break on an upgrade and may not be enough when loading the editor outside of a paragraph.
Thanks!
Imar