force-http-url.php

<?php
/*
Plugin Name:  Force HTTP sharing URL
Description:  Make og:url HTTP in Yoast and Jetpack meta data
Version:      20181127
Author:       kristarella
License:      GPL2
License URI:  https://www.gnu.org/licenses/gpl-2.0.html
*/

/* Enforce HTTP Open Graph URLs in Yoast SEO
 * Credit: stodorovic https://github.com/stodorovic
 * Last Tested: Feb 06 2017 using Yoast SEO 5.8 on WordPress 4.8.2
 */

add_filter( 'wpseo_opengraph_url', 'yoast_http_og_url' );
function yoast_http_og_url( $url ) {
    return str_replace( 'https://', 'http://', $url );
}

/* Enforce HTTP Open Graph URLs in Jetpack
 *
 */
add_filter( 'jetpack_open_graph_tags', 'jetpack_http_og_url' );
function jetpack_http_og_url( $tags ) {
    $tags['og:url'] = str_replace( 'https://', 'http://', $tags['og:url'] );

    return $tags;
}