feed generator does not correctly detect if we run on https

[duritong]

wp-includes/feed.php does not correctly detect, whether the feed is accessed via https or not, so it will always generate an http-only link.

This is because it looks for

$_SERVER['https']

instead of

$_SERVER['HTTPS']

Other wordpress scripts are already looking for:

$_SERVER['HTTPS']

So fix is quite simple and patch is attached and uploaded here: ​https://gist.github.com/1481164

fix for https on feed issue

It should actually be using is_ssl().

Yep, we should be using is_ssl() here.

In [19598]:

Use is_ssl() in self_link(). Fixes #19563