I'm trying to setup Nginx to forward requests to several backend services using proxy_pass however several pages load with 404s

The links on the pages have https:// in front, but result in a http request - which ends in a 404 - I only want these services to be available through https.

I've tried with varied trailing forward slashes appended to the proxypath and location in proxy.conf, I've also tried commenting out www.conf (just incase its location blocks could have caused any conflicts) to no effect.

So if a link is too https://example.com/sickbeard/errorlogs

in a browser when loaded https://example.com/sickbeard/errorlogs gives a 404

in a browser https://example.com/sickbeard/errorlogs/ loads

nginx error log;

2011/11/23 14:21:58 [error] 28882#0: *6 "/var/www/sickbeard/errorlogs/recent.html" is not found (2: No such file or directory), client: 192.168.1.99, server: example.com, request: "GET /sickbeard/errorlogs/ HTTP/1.1", host: "example.com"

Config files;

proxy.conf

location /sickbeard {
    proxy_pass        http://localhost:8081/sickbeard;
    include proxy.inc;
}
.... more entries ....

sites-enabled/main

server {
    listen   80;
    include www.conf;
}
server {
    listen 443;

    include proxy.conf;
    include www.conf;

    ssl on;
}

www.conf

root /var/www;
server_name example.com;

location / {
    autoindex off;
    allow all;
    rewrite ^/$ /mainsite last;

    location ~*  \.(jpg|jpeg|gif|css|png|js|ico)$ {
        expires max;
    }

    location ~ \.php$ {
        fastcgi_index index.php;
        include fastcgi_params;
        if (-f $request_filename) {
            fastcgi_pass 127.0.0.1:9000;
        }
    }
}

proxy.inc

proxy_connect_timeout   59s;
proxy_send_timeout      600;
proxy_read_timeout      600;
proxy_buffer_size       64k;
proxy_buffers           16 32k;
proxy_pass_header       Set-Cookie;
proxy_redirect          off;
proxy_hide_header       Vary;

proxy_busy_buffers_size         64k;
proxy_temp_file_write_size      64k;

proxy_set_header        Accept-Encoding         '';
proxy_ignore_headers    Cache-Control           Expires;
proxy_set_header        Referer                 $http_referer;
proxy_set_header        Host                    $host;
proxy_set_header        Cookie                  $http_cookie;
proxy_set_header        X-Real-IP               $remote_addr;
proxy_set_header        X-Forwarded-Host        $host;
proxy_set_header        X-Forwarded-Server      $host;
proxy_set_header        X-Forwarded-For         $proxy_add_x_forwarded_for;