AutoFill In Safari

HI forum,

We are trying to use autofill for safari in our signup form and it keeps failing. We are following the instructions provided by apple in the link below. It does not work for us. We are trying to autofill name, email, phone number, username, password, and none of these are working.

I have checked and found the some solution but no response'. I have shared the link below please check

https://developer.apple.com/documentation/security/password_autofill/enabling_password_autofill_on_an_html_input_element

please help us understand how to use autofill in safari so we can populate these form fields.