How to enable CORS

<!-- wp:paragraph -->\n<p>Cors means Cross-origin resource sharing which should be enable to establish the communication between a mobile app and a website</p>\n<!-- /wp:paragraph -->\n\n<!-- wp:code -->\n<pre class=\"wp-block-code\"><code>\n&lt;?php \n\nheader(\"Access-Control-Allow-Origin: *\");\nheader(\"Access-Control-Allow-Methods: GET, POST\");\nheader(\"Access-Control-Allow-Headers: Content-Type\");\n\n?></code></pre>\n<!-- /wp:code -->