mw.config.get('wgServer') on https://en.wikipedia.beta.wmflabs.org/wiki/: https://en.wikipedia.beta.wmflabs.org
mw.config.get('wgServer') on https://commons.wikimedia.beta.wmflabs.org/wiki/: https://commons.wikimedia.beta.wmflabs.org
mw.config.get('wgServer') on https://en.wikipedia.org/wiki/: //en.wikipedia.org
mw.config.get('wgServer') on https://commons.wikimedia.org/wiki/: //commons.wikimedia.org
This can cause gadgets to fail if this is unexpected. It would be nice if the protocol could consistently be omitted or specified, I don't particularly care either way as long as it's consistent.