ckan/ckan — pull request #1719 by tlukasiak (2014-05-15 04:51:59+00:00)
Title: Changed external http:// links to // protocol-independent paths

When serving CKAN on https://, browsers will complain when parts of a rendered page attempt to get data over http://.

This actually prevents reCAPTCHA from rendering at all on a new user form when CKAN is on https://. Luckily, most of the external services referenced in CKAN are available over http:// and https://. This fix allows for the right protocol to be chosen automatically.