WordPress and SSL
https://www.sevciktomas.cz/blog/https-a-wordpress-prechod-krok-za-krokem/
https://www.wplama.cz/jak-nastavit-wordpress-z-http-na-https/
http://www.wpbeginner.com/wp-tutorials/how-to-add-ssl-and-https-in-wordpress/
You need to set
install_url to use ShareThis. Please set it in _config.yml.