Custom FieldsRe-Envisioned › Support › General › url field validation not working for www › Reply To: url field validation not working for www June 19, 2018 at 12:10 PM #10247 Anh TranKeymasterHi Alex,The plugin supports all HTML5 input types, including url. I’ve just added the documentation for that. Please take a look.The URL field requires the value starts with http. I think www is not a valid protocol. See here for more info.