Yoast/wordpress-seo — pull request #993 by Fab1en (2014-04-07 09:59:28+00:00)
Title: [fix #983] Set the correct HTTP protocol in sitemap response

Fix issue #983 : use a server variable to set the correct HTTP protocol for xml sitemaps requests.
Writing HTTP protocol in plain text can raise response body corruption (see [this comment](http://www.php.net/manual/en/function.header.php#92305) on php.net `header` function page).