[рони]

Ubivectel,

function myClick() {
            let inputKide = document.querySelector('#pass-kide').value;
            if (inputKide == 'xxx') {
                document.querySelector('#secure').remove();
                fetch("https://noviy-kovcheg.ru/smoking/kide.form.hide.php")
                    .then(response => {
                        return response.text()
                    })
                    .then(data => {
                        document.querySelector("#form-kide").innerHTML = data;
                    });

            };
        };

        document.querySelector('#pass-btn').addEventListener('click', myClick);