Cant Log Into Wordpress Admin: Nginx Issue - SSL?

Question

For some reason I get a 301 redirect loop when I force SSL_admin. No big deal I simply click the icon to load unsecure elements but now I cant log into the admin area at all.

I already tried SERVER SSL on ... and a variety of other things

              proxy_set_header X_FORWARDED_PROTO https;
              proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
              proxy_set_header  Host $http_host;
              proxy_set_header  X-Url-Scheme $scheme;
              proxy_redirect    off;
              proxy_max_temp_file_size 0;

         proxy_pass http://IP:8080;

I tried this but to no avail:

set $no_cache "";

set $cache_uri $request_uri;


    # Don't cache uris containing the following segments
 if ($request_uri ~* "(sitemap.xml|sitemap.xml.gz|/wp-admin/|/auth-php|/xmlrpc$

        set $cache_uri 'null cache';
        set $no_cache 1;
    }

Answer 1

Instead of checking whether any headers fit I just pasted this into wp-config.php

$_SERVER['HTTPS'] = 'on';

Also changed

proxy_set_header Host $http_host;

to

proxy_set_header Host $host;