Hello all.

I'm trying to add several Font Awesome elements (here's the example http://fontawesome.io/examples/ )
to my page content using admin page editor
Admin -> Content management -> Topics -> <Page> Edit -> Editor Tools -> Source code button.

But after the required <i></i> elements are added and page is saved they absent in topic database table record and (as a result) in output html. They are converted to &nbsp; element.
Even if I put directly to DB table record they are converted to &nbsp; on the server.

How can I prevent such element replacement?