So i tried use react helmet like this in my component :

 <Helmet>
<title>EXAMPLE</title>
<meta name="description" content="EXAMPLE" />
<meta itemprop="name" content="EXAMPLE" />
<meta itemprop="description" content="EXAMPLE" />
<meta itemprop="image" content="EXAMPLE" />
etc ...
</Helmet>

everything work perfect on localhost but when extract the build and upload it to cpanel , shared the link on facebook and test meta on metatags.io I always get null for the meta