usage in ::cdn_url for documentation of this filter
		$custom_photon_url = apply_filters( 'jetpack_photon_domain', '', $url );
		$custom_photon_url = esc_url( $custom_photon_url );

		return in_array( $parsed_url['host'], array( 'i0.wp.com', 'i1.wp.com', 'i2.wp.com' ), true )
			|| wp_parse_url( $custom_photon_url, PHP_URL_HOST ) === $parsed_url['host'];
	}

	/**
	 * URL-encodes each path component.
	 *
	 * Example:
	 * Input: "foo/bar baz/baz"
	 * Output: "foo/bar%20baz/baz"
	 *
	 * @param string $path The path to escape.
	 * @return string The escaped path.
	 */
	private static function escape_path( $path ) {
		$parts = explode( '/', $path );
		$parts = array_map( 'rawurldecode', $parts );
		$parts = array_map( 'rawurlencode', $parts );
		return implode( '/', $parts );
	}

	/**
	 * Parses WP.com-hosted image args to replicate the crop.
	 *
	 * @param mixed  $args Args set during Photon's processing.
	 * @param string $image_url URL of the image.
	 * @return array|string Args for Photon to use for the URL.
	 */
	public static function parse_wpcom_query_args( $args, $image_url ) {
		$parsed_url = wp_parse_url( $image_url );

		if ( ! $parsed_url ) {
			return $args;
		}

		$image_url_parts = wp_parse_args(
			$parsed_url,
			array(
				'host'  => '',
				'query' => '',
			)
		);

		if ( ! str_ends_with( $image_url_parts['host'], '.files.wordpress.com' ) ) {
			return $args;
		}

		if ( empty( $image_url_parts['query'] ) ) {
			return $args;
		}

		$wpcom_args = wp_parse_args( $image_url_parts['query'] );

		if ( empty( $wpcom_args['w'] ) || empty( $wpcom_args['h'] ) ) {
			return $args;
		}

		// Keep the crop by using "resize".
		if ( ! empty( $wpcom_args['crop'] ) ) {
			if ( is_array( $args ) ) {
				$args = array_merge( array( 'resize' => array( $wpcom_args['w'], $wpcom_args['h'] ) ), $args );
			} else {
				$args = 'resize=' . rawurlencode( absint( $wpcom_args['w'] ) . ',' . absint( $wpcom_args['h'] ) ) . '&' . $args;
			}
		} elseif ( is_array( $args ) ) {
			$args = array_merge( array( 'fit' => array( $wpcom_args['w'], $wpcom_args['h'] ) ), $args );
		} else {
			$args = 'fit=' . rawurlencode( absint( $wpcom_args['w'] ) . ',' . absint( $wpcom_args['h'] ) ) . '&' . $args;
		}

		return $args;
	}

	/**
	 * Sets the scheme for a URL
	 *
	 * @param string $url URL to set scheme.
	 * @param string $scheme Scheme to use. Accepts http, https, network_path.
	 *
	 * @return string URL.
	 */
	public static function cdn_url_scheme( $url, $scheme ) {
		if ( ! in_array( $scheme, array( 'http', 'https', 'network_path' ), true ) ) {
			if ( preg_match( '#^(https?:)?//#', $url ) ) {
				return $url;
			}

			$scheme = 'http';
		}

		if ( 'network_path' === $scheme ) {
			$scheme_slashes = '//';
		} else {
			$scheme_slashes = "$scheme://";
		}

		return preg_replace( '#^([a-z:]+)?//#i', $scheme_slashes, $url );
	}

	/**
	 * Check to skip Photon for a known domain that shouldn't be Photonized.
	 *
	 * @param bool   $skip If the image should be skipped by Photon.
	 * @param string $image_url URL of the image.
	 *
	 * @return bool Should the image be skipped by Photon.
	 */
	public static function banned_domains( $skip, $image_url ) {
		$banned_host_patterns = array(
			'/^chart\.googleapis\.com$/',
			'/^chart\.apis\.google\.com$/',
			'/^graph\.facebook\.com$/',
			'/\.fbcdn\.net$/',
			'/\.paypalobjects\.com$/',
			'/\.dropbox\.com$/',
			'/\.cdninstagram\.com$/',
			'/^(commons|upload)\.wikimedia\.org$/',
			'/\.wikipedia\.org$/',
			'/^m\.media-amazon\.com$/',
		);

		$host = wp_parse_url( $image_url, PHP_URL_HOST );
		if ( ! $host ) {
			return $skip;
		}

		foreach ( $banned_host_patterns as $banned_host_pattern ) {
			if ( 1 === preg_match( $banned_host_pattern, $host ) ) {
				return true;
			}
		}

		return $skip;
	}

	/**
	 * Check whether a string ends with a specific substring.
	 *
	 * @param string $haystack String we are filtering.
	 * @param string $needle The substring we are looking for.
	 * @return bool
	 */
	public static function ends_with( $haystack, $needle ) {
		if ( ! $haystack || ! $needle || ! is_scalar( $haystack ) || ! is_scalar( $needle ) ) {
			return false;
		}

		$haystack = (string) $haystack;
		$needle   = (string) $needle;

		return str_ends_with( $haystack, $needle );
	}

	/**
	 * This is a copy of Jetpack::get_content_width()
	 * for backwards compatibility.
	 */
	public static function get_jetpack_content_width() {
		$content_width = ( isset( $GLOBALS['content_width'] ) && is_numeric( $GLOBALS['content_width'] ) )
			? $GLOBALS['content_width']
			: false;
		/**
		 * Filter the Content Width value.
		 *
		 * @since 2.2.3
		 *
		 * @param string $content_width Content Width value.
		 */
		return apply_filters( 'jetpack_content_width', $content_width );
	}
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class 'Automattic\Jetpack\Image_CDN\Image_CDN_Core' not found in /var/www/html/dportilho.com.br/web/wp-content/plugins/jetpack/jetpack.php:214
Stack trace:
#0 /var/www/html/dportilho.com.br/web/wp-settings.php(526): include_once()
#1 /var/www/html/dportilho.com.br/web/wp-config.php(126): require_once('/var/www/html/d...')
#2 /var/www/html/dportilho.com.br/web/wp-load.php(50): require_once('/var/www/html/d...')
#3 /var/www/html/dportilho.com.br/web/wp-blog-header.php(13): require_once('/var/www/html/d...')
#4 /var/www/html/dportilho.com.br/web/index.php(17): require('/var/www/html/d...')
#5 {main}
  thrown in <b>/var/www/html/dportilho.com.br/web/wp-content/plugins/jetpack/jetpack.php</b> on line <b>214</b><br />