Steps to Reproduce: 1) Create HTML document in ContentExplorer (or any other document which contains HTML)

2) Go to http://en.wikipedia.org/wiki/Online_shopping and copy the first paragraph to the CKEditor in EPP-SP

  a) copy directly from browser to WYSIWYG mode of CKEditor
  b) copy from page's HTML source to HTML-source mode of CKEditor

(At this point the content seems to be copied fine.)

3) Save the content

The first half of the paragraph is gone.
project_key: JBEPP

Parts of text are deleted after HTML content is saved in Content Explorer. The problem was discovered when trying to build a simple SP website from contents of various Wikipedia articles.

For example: http://en.wikipedia.org/wiki/Online_shopping

The problem appears for both copying in WYSIWYG mode and HTML-source mode.

Note: The CKEditor itself seems to work ok with the imported HTML. It is the Save action which breaks the content.