[laurihy]

Oops, good catch, thanks! Hadn't thought of this.

Apparently the problem is just sending a request https->http. https->https should work fine. Adding SSL asap.

EDIT: now you can also use https://api.formspree.com/[e-mail]

[crapiola]

The rules are more complex. I'd say just do away with the refer(r)er. http://webmasters.stackexchange.com/questions/47405/how-can-...

Maybe later when you have a real problem, fix it then. Let's cross bridges when we come to the river, that way we'll all have much simpler code!