Support for recaptcha on SSl sites

Problem is that the loading of the script is refused as the URL to the recaptcha script is http based. Best would be to reference it without protocol

Console states:
Mixed Content: The page at ‘https://www.endecocide.org/contact/’ was loaded over HTTPS, but requested an insecure script ‘https://www.google.com/recaptcha/api/challenge?k=XXXXXXXXXXXXX’. This request has been blocked; the content must be served over HTTPS.

so instead of https://www.google.com/recaptcha/api/challenge?k=XXXXXXXXXXXXX
load the script via
//www.google.com/recaptcha/api/challenge?k=XXXXXXXXXXXXX
This will ensure https for ssl sites and http for others

The page I need help with: [log in to see the link]