In Chrome, the protocol is hidden for some reason. This affects copy/paste from the address bar into an email or some other document. For example, let's say I am at this URL:
If I just want to copy
subdomain.domain.com/myvitualdir/myvitualdir, it won't actually copy the HTTP part.
Update: I just figured out what causes this "quirk" to occur. Let's say you have
www.whatever.com/myvd in your browser history. If you start typing
whatever in the address bar, Chrome will start auto-completing matching URLs for you. While still in the auto-complete stage (ie, not actually browsing to the URL), attempting to copy the URL will not include the protocol. It seems intermittent, though, because sometimes it copies the protocol and other times it doesn't.