Safari can not get cookies in iframe

I have two websites, one is A and the other is B. A embeds B through an iframe, and B obtains the data passed by A through a URL, such as lang=en. B can obtain lang through a URL, and then set it through Cookies.set ('lang ', urlLang, {secure: true, sameSite:'Nome'). When reading it, I cannot read Cookies.get ('lang '). Chrome and Edge can be read normally

A website's code

<iframe src="https://xxxxB.com/?lang=en"

B website's code is :

<script>
        let params = new URLSearchParams(window.location.search)
        let urlLang = params.get("lang")
        console.log("urlLange:",urlLang)
        document.getElementById("urlLang").innerHTML = "url language is ："+urlLang;
        Cookies.set('lang', urlLang, { secure: true,sameSite: 'None'})
        let lang = Cookies.get('lang'); 
        console.log('Language:', lang);
        document.getElementById("lang").innerHTML = "after cookies setting is："+lang;
        
    </script>