Installation instructions can be found here. Code as described in the First Dynamic Form Tag Helper Attempt post is available on the 'first_attempt' tag. Changes introduced in the Supporting Complex ...

captcha = "".respond_to?(:html_safe) ? zero_captcha_html.html_safe : zero_captcha alias_method :form_tag_html_without_zero_captcha, :form_tag_html alias_method :form ...