POST 401未经授权

Question

我正在尝试使用Fetch API创建注册表单。表单数据已发送到数据库，但是在devtools'POST http://localhost/sem2/UX2/ws.php?request=registration 401（Unauthorized）中仍然出现错误。尝试了几种不同的标题，但到目前为止没有任何效果。 这是我的JS代码-

document.querySelector('#regoform').addEventListener('submit', e => {
  e.preventDefault();
  let form = document.querySelector('#regoform');
  const data = new URLSearchParams();
  for(const p of new FormData(form)) {
      data.append(p[0], p[1], p[2], p[3], p[4], p[5]);
  }

  fetch('./ws.php?request=registration', {

      method: 'POST',
      body: data,
      mode: 'cors'

  }) 
  .then(response => response.json())
  .then(response => console.log(response))     
  .catch(error => console.log(error))

});

这是我的php文件

            if (isset($_GET['request'])){
            switch($_GET['request']) {
                case 'registration':
                    $fName = $_POST['fName'];
                    $surname = $_POST['surname'];
                    $gender = $_POST['gender'];
                    $age = $_POST['age'];
                    $email = $_POST['email'];
                    $password = $_POST['password'];
                    $result = $dbobj->newUser($fName, $surname, $gender, $age, $email, $password);
                    break;