CCK Link URL's with and without http:// should be classified as unique

Hi there,

There seems to be a minor issues when using Unique field with the CCK Link module. Unique field treats http://www.example.com and www.example.com as different URL's, which in fact is the same.

CCK Link allow URL's with and without the http part, which I personally find to be bad practice, but now it's like that so perhaps Unique field could make this check?

Thanks!