_content;
}

// Register the block support.
WP_Block_Supports::get_instance()->register(
	'position',
	array(
		'register_attribute' => 'wp_register_position_support',
	)
);
add_filter( 'render_block', 'wp_render_position_support', 10, 2 );
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/deltakeprico/public_html/wp-includes/block-supports/position.php:1) in <b>/home/deltakeprico/public_html/wp-includes/pluggable.php</b> on line <b>1435</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/deltakeprico/public_html/wp-includes/block-supports/position.php:1) in <b>/home/deltakeprico/public_html/wp-includes/pluggable.php</b> on line <b>1438</b><br />