Comment by 4oo4

This mostly makes sense except the 3rd and 5th `http://`, unless those are supposed to be grouped together?

    http:// (scheme)
    http:// (user)
    http:// ??
    @http:// (hostname)
    http:// ??
    ?http:// (parameter)
    #http:// (fragment)

Will buy a beer for the first person that demonstrates how to serve that URL.