Just to complement the entire information.

In my scenario was necessary to add this  change into the RichEditor.cshtml because i'm using images in some campaign's

from
  //"relative_urls" required by jbimages plugin to be set to "false"
  relative_urls: false

to
        //"relative_urls" required by jbimages plugin to be set to "false"
        relative_urls: false
        remove_script_host: false