php header not working on live server code example

Example 1: zerossl not working for node js

// Make sure to include the certificate bundle as well
const options = {
  key: fs.readFileSync("/dir/key.key"),
  cert: fs.readFileSync("/dir/crt.crt"),
  ca: fs.readFileSync("/dir/ca.ca"),
};

Example 2: header media video not showing up on mobile for wordpress

// Enable video header support on mobile devices
add_filter( 'header_video_settings', function( $args ) {

	$args['minWidth'] = 0;

	return $args;

} );