sources list should middle-truncate or not show the host at all Another option would be to not show the host at all in that list (assuming all of the files were from the same host (which they will be 99.99% of the time).
Middle truncate would need a new text-overflow value, like middle-ellipse. Some other method of making it more readable could be explored. Hiding the common host name that the main resource has, but show it on other files that don't share the common host name.
The Web Inspector debugger has a design that hides the common host name.