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I need to redirect by cookie to another domain - multi-store

I have this code.

public function hookdisplayHeader()
{
	$URL_P = $_SERVER['REQUEST_URI'];
	$cookie = $this->context->cookie->forced_zone;
	$dominiourl =$_SERVER['SERVER_NAME'];
	if(!$cookie){
		$cookie = 2;
		$this->context->cookie->forced_zone = 2;
	}
	switch ($cookie) {

		case '1':
			if ($dominiourl != 'domain.1'){
				header("Location: domain.1/".$URL_P);
			}
			
		case '2':
			if ($dominiourl != 'domain.2'){
				header("Location: domain.2/".$URL_P);
			}
	}

}

The problem I find is that it doesn't stop looping when trying to redirect.
Using IP works correctly.
Using forced redirection works correctly
Using cookie does not work