PLEASE HELP – custom question answer type date

Hello,

Could someone please help me out? I added a custom question (experience date) that needs to be answered with a valid date instead of text or number (possibilities now-on site review form). The question is required and the date can’t be older than 12 months or in the future. I tried different codes and none is the perfect one. Custom script at the moment:

jQuery(document).ready(function($) {
   
    $('input[id^="cr_onsite_"][type="text"]').attr('type', 'date');

   
    var today = new Date();
    var oneYearAgo = new Date(today);
    oneYearAgo.setFullYear(today.getFullYear() - 1);

    $('input[id^="cr_onsite_"][type="date"]').each(function() {
        $(this).attr('min', oneYearAgo.toISOString().split('T')[0]); 
        $(this).attr('max', today.toISOString().split('T')[0]); 
        $(this).attr('required', true); 
    });

    
    $('#cr-review-form').on('submit', function(event) {
        var isValid = true;

        $('input[id^="cr_onsite_"][type="date"]').each(function() {
            var dateInput = $(this).val();
            var inputDate = new Date(dateInput);
            
           
            if (!dateInput) {
                isValid = false;
                alert('Dit veld mag niet leeg zijn.');
                $(this).focus(); 
                return false;
            }

           
            if (inputDate.toString() === 'Invalid Date') {
                isValid = false;
                alert('Voer een geldige datum in.');
                $(this).focus(); 
                return false; 
            }

            
            if (inputDate < oneYearAgo || inputDate > today) {
                isValid = false;
                alert('De datum moet binnen het afgelopen jaar liggen.');
                $(this).focus(); 
                return false; 
            }
        });

        
        if (!isValid) {
            event.preventDefault();
        }
    });
});

The field can still be send in empty or with a invalid date like 31-09-2024. Is it possible to make this field required again by filling in a date (instead of number or text)?

The page I need help with: [log in to see the link]