Need help with nginx and url rewrite after update to 1.27 - MediaWiki-l

19 Jan 2017

I was running private wiki using mediawiki 1.21 running on apache
behind nginx. I'm serving wiki and some other sites using https. To
save on ssl cert I'm doing following:
I have http://wiki.somehost.org redirect to https://ssl.somehost.org/wiki.
Here's my nginx config:
{{{
        server {
                listen 80;
                server_name     wiki.somehost.org ;
                rewrite         ^(.*)$
https://ssl.somehost.org/wiki$request_uri? permanent;
        }

...

       server {
             listen 443;
 ...
             location /wiki/  {
                        proxy_pass      http://127.0.0.1:8080/;
                        proxy_set_header Host wiki.somehost.org;

                        sub_filter      'http://wiki.somehost.org'
'https://ssl.somehost.org/wiki';
                        sub_filter_once off;
                }
...
       }
}}}

Apache serves wiki from 8080; And I have floowing in LocalSettings.php:
{{{
$wgScriptPath       = "/wiki";
$wgServer           = "https://ssl.somehost.org"
}}}

And it was okay with 1.21. Now I'm upgraded to 1.27 and I've get
infinite redirects on login. Then I've commented $wgServer and able to
login.
But my urls looks weird:
1) login is ok: https://ssl.somehost.org/wiki/index.php?title=Special:UserLogin
2) rest is not ok: https://ssl.somehost.org/wiki/wiki/index.php/Main_Page
Please help with wiki configuration.