I have looked at many sites and do not find clear references showing how “keyboard-only users” expect form validation.
Assume several different types of fields, each set to “required.” A sighted user can Tab through each field in sequence and not see an error until the form is submitted.
A11Y suggests an error message when a user leaves an invalid input field. Most users prefer returning to that field.
W3.org suggests not showing any errors until the form is submitted.
My request is for links that show today’s best practices for forms used by keyboard-only users and screen readers.
Thank you for reading.