域名重定向会影响form表单的传值

document.getElementById('myForm').addEventListener('submit', function(event) {
    event.preventDefault(); // 阻止表单默认提交行为

    var form = this;
    var formData = new FormData(form);

    // 检测当前域名是否发生了重定向
    fetch(window.location.href, { method: 'HEAD' })
        .then(response => {
            if (response.url !== window.location.href) {
                // 如果发生了重定向，调整表单提交的URL
                form.action = response.url;
            }
            // 提交表单
            return fetch(form.action, {
                method: form.method,
                body: formData
            });
        })
        .then(response => response.json())
        .then(data => {
            console.log('Form submitted successfully:', data);
        })
        .catch(error => {
            console.error('Error submitting form:', error);
        });
});