Klen

Some CPA networks are blocking access to URL if you dont have right GEO, but URL is not loading at all, meaning you click go and nothing happens. If you would for example, block geo on firewall level, then URL would be throw timeout error after some time. Or if you would put geo block on PHP level you could throw an 403 error. I guess this must javascript thing, but i find it silly to block on pre-load instead redirecting incorrect traffic to somewhere else.