var options = { attributes: { rel: 'nofollow', title: 'click to open', }, className: 'internal-link', format: { url: function (value) { return value } }, ignoreTags: ['a'], validate: { url: function (value) { return value; } } }; var str = `http://rightsstatements.org/vocab/UND/1.0/`; document.write(linkifyHtml(str, options)); ]]>