Marcin Swierczynski marcin@swierczynski.net The Url Without Scheme Validator Plugin allows to use custom validator that validates the URLsbut - different than standard validator - does not care if the scheme is provided or not.Moreover, it can be used like "first-class", built-in validator. http://grails.org/plugin/url-without-scheme-validator UrlWithoutSchemeValidatorGrailsPlugin