frames.php
public function getRealm()
    {
        if (is_integer($this->focus)) {
            return $this->frames[$this->focus]->getRealm();
        }

        return $this->frameset->getRealm();
    }
public function getRealm()
    {
        if (is_integer($this->focus)) {
            return $this->frames[$this->focus]->getRealm();
        }

        return $this->frameset->getRealm();
    }
Accessor for last Authentication realm. Only valid straight after a challenge (401).

@return string    Name of security realm.