apply_filters( 'oembed_fetch_url', string $provider, string $url, array $args )

599		 *600		 * @param string $provider URL of the oEmbed provider.601		 * @param string $url      URL of the content to be embedded.602		 * @param array  $args     Optional. Additional arguments for retrieving embed HTML.603		 *                         See wp_oembed_get() for accepted arguments. Default empty.604		 */605		$provider = apply_filters( 'oembed_fetch_url', $provider, $url, $args );606 607		foreach ( array( 'json', 'xml' ) as $format ) {608			$result = $this->_fetch_with_format( $provider, $format );609			if ( is_wp_error( $result ) && 'not-implemented' === $result->get_error_code() ) {610				continue;611			}