WP_REST_Blocks_Controller::check_read_permission( WP_Post $post )

Source

File: wp-includes/rest-api/endpoints/class-wp-rest-blocks-controller.php

public function check_read_permission( $post ) {
		// By default the read_post capability is mapped to edit_posts.
		if ( ! current_user_can( 'read_post', $post->ID ) ) {
			return false;
		}

		return parent::check_read_permission( $post );
	}