public function onRequestComplete(Event $event)
	{
		if ($body = $event['response']->getBody()) {
			if (substr($body, 0, 3) === "\xef\xbb\xbf") {
				// UTF-8
				$event['response']->setBody(substr($body, 3));
			} else if (substr($body, 0, 4) === "\xff\xfe\x00\x00" ||
					   substr($body, 0, 4) === "\x00\x00\xfe\xff"
			) {
				// UTF-32
				$event['response']->setBody(substr($body, 4));
			} else if (substr($body, 0, 2) === "\xff\xfe" ||
					   substr($body, 0, 2) === "\xfe\xff"
			) {
				// UTF-16
				$event['response']->setBody(substr($body, 2));
			}
		}
	}