When installing a wiki the installer always hardcodes the protocol to $wgServer e.g.
$wgServer = "http://www.example.org";
Since MW 1.18+ allows for protocol relative settings to $wgServer the installer should probably always better add
$wgServer = "//www.example.org";
for the default install. Probably this bug is building on bug 44260. This setting tends to be painful if it is hardcoded with an explicit protocol so ...
Version: 1.22.7
Severity: normal
See Also:
https://bugzilla.wikimedia.org/show_bug.cgi?id=44260