Why doesn't the form see the autofilled saved password?

Question

Google Chrome

I saved the password in chrome, I send email and password, I see email in POST, but I don’t see the password. I add a space to the password and remove it, then I send a request and then the password appears in the request. Everything happens in fancybox'e iframe. If you open anction.php separately, then the form works

<form name="form" method="POST" action="action.php">
        <div class="email">
            <input class="input-txt" autocomplete="on" name="email" type="email" placeholder="почта" autofocus maxlength="64">
        </div>
        <div class="password">
            <input class="input-txt" autocomplete="on" name="pass" type="password" placeholder="пароль">
        </div>
        <input class="addob" type="submit" name="Submit" value="Giriş">
        <input type="hidden" name="MM_logn" value="logn">
        <input type="hidden" name="reload" value="0">
    </form>

Answer 1

type="password" is secure.
put type="text" ))