Sa tanong ninyo bosing buhay pa yung HSS server configs dyan - verified ko without mgc (or wala yung nasa http-proxy options nya), so live pa sila. Pero di ako sure kung yung exact setting sa config ay mag-work sa free net sa ngayon at 2 yrs old na yung trick.
Wala kasing option to use http custom headers sa HSS openvpn na yan. Test nyo sa may promo baka sakali. Kung ayaw, you may need to use an http injector (with the latest working free site hosts/payload) and then this vpn with your revised http-proxy sa config, like the others are doing - the normal way. Or use the alternative openvpn with custom headers vpn with your own live config using the config headers used here: https://phcorner.net/t/release-phcorner-vpn-beta-1-0b-unofficial.267212/
Wala na kasing bisa yung mgc vpn trick sa no load at sa with promo lang.