Laravel 5 X-CSRF-TOKEN 500 (Internal Server Error) in Ajax - ajax

Question

Hello I have change password using Ajax (this is a short version of the code):
var password = document.querySelector('[name="password"]').value;
action = 'http://localhost:8012/market2/market2/public/account/query/';
if (window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest(); // code for IE7+, Firefox, Chrome, Opera, Safari
} else {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); // code for IE6, IE5
}
xmlhttp.open("post",action + password, true);
xmlhttp.setRequestHeader("X-CSRF-TOKEN", document.getElementById('token-csrf').value);
xmlhttp.onreadystatechange=function() {
if (this.readyState == 4 && this.status == 200) {
if (this.responseText == "false") {
document.getElementById("error_password").innerHTML = "You actually password is wrong!";
return false;
} else {
document.getElementById("error_password").innerHTML = "OK";
return true;
}
}
}
xmlhttp.send();
}
And my csrf-token:
<input type="hidden" name="_token" id="token-csrf" value="{{ csrf_token() }}">
I don't know did I correct add parameter X-CSRF-TOKEN to my script. First I have error ajax 419 (unknown status) so I added X-CSRF-TOKEN and now I have error 500 (Internal Server Error). I also tried this: Laravel 5.5 ajax call 419 (unknown status)
Edit Post:
Is't my query method:
public function queryPass($pass) {
$user = Auth::user();
$current_password = $user->password;
if(Hash::check($pass, $current_password)) {
$updatePassword = App\User::where('id', $user->id)->update(['password' => bcrypt($pass)]);
echo "true";
} else {
echo "false";
die;
}
}
And route:
Route::get('account/query/{pass?}', 'UsersController#queryPass');

Answer 1

First problem was that he missed use Illuminate\Support\Facades\Hash; at the top of his controller, he used use Hash;, second thing when we resolved that was that, he was returning a boolean from inside a controller, when he is supposed to return an object which implements __toString method or a string, so he returned a correct response in this case a string "true" and "false"