Why is the login form not working correctly?

Question

WordPress

Hello, I wrote a custom WordPress login form and put it in the header. The problem is that if I enter the login and password correctly, the page is refreshed, but it does not enter wp. You need to refresh the page itself again and go to the administrative panel. The hidden redirect_to field does not work at all, I tried to change the logic of work, and changed several functions, but nothing helped. I will be glad for any help

<form class="form__sign-in" action="" method="post">
    <div class="form__input">
      <input type="text" placeholder="Логин или e-mail" name="log" id="user_login">
      <div>
        <a data-fancybox="" data-animation-duration="700" href="#forpass">Забыли пароль</a>
        <a data-fancybox="" data-animation-duration="700" href="#registration">Регистрация</a>
      </div>
    </div>
    <div class="form__input">
      <input type="password" placeholder="Пароль" name="pwd" id="user_pass">
      <label><input name="rememberme" type="checkbox" id="rememberme" value="forever" /><span>Запомнить меня</span></label>
    </div>
    <input type="hidden" name="redirect_to" value="<?php echo $_SERVER['HTTP_REFERER']; ?>">
    <input type="hidden" name="testcookie" value="1" />
    <div class="form__input">
      <input type="submit" placeholder="Войти" value="Войти" name="button" class="form__button">
    </div>
    </form>

Answer 1

Where is your php and js handler?
I use this code here, but of course I cost it
https://gist.github.com/cristianstan/10273612

Answer 2

if you are still interested write vitalik199211