Codepaster does not work when host has trailing whitespaces

I had copy'n'pasted the host for using CodePaster inside of Creator.
Didn't notice that I had copied a trailing blank and wondered that using CodePaster didn't work - always complaining "Host not found" and leaded me back to the settings.

I think it would be better to trim the hostname automatically by creator or checking the hostname when entered for not allowed characters.