jellyfin NPM https - no images in local network

Code:
server {

  set $forward_scheme http;

  set $server        "192.168.20.70";

  set $port          8096;

  

listen 8080;

listen [::]:8080;



listen 4443 ssl http2;

listen [::]:4443 ssl http2;





  server_name SUB.MY.DOMAIN;



  # Let's Encrypt SSL

  include conf.d/include/letsencrypt-acme-challenge.conf;

  include conf.d/include/ssl-ciphers.conf;

  ssl_certificate /etc/letsencrypt/live/npm-6/fullchain.pem;

  ssl_certificate_key /etc/letsencrypt/live/npm-6/privkey.pem;



    add_header X-Frame-Options "SAMEORIGIN";

    add_header X-Content-Type-Options "nosniff";



    # COOP/COEP. Disable if you use external plugins/images/assets

    add_header Cross-Origin-Opener-Policy "same-origin" always;

    add_header Cross-Origin-Embedder-Policy "require-corp" always;

    add_header Cross-Origin-Resource-Policy "cross-origin" always;



# Permissions policy. May cause issues on some clients

    add_header Permissions-Policy "accelerometer=(), ambient-light-sensor=(), battery=(), bluetooth=(), camera=(), clipboard-read=(), display-capture=(), document-domain=(), encrypted-media=(), gamepad=(), geolocation=(), gyroscope=(), hid=(), idle-detection=(), interest-cohort=(), keyboard-map=(), local-fonts=(), magnetometer=(), microphone=(), payment=(), publickey-credentials-get=(), serial=(), sync-xhr=(), usb=(), xr-spatial-tracking=()" always;



    # Tell browsers to use per-origin process isolation

    add_header Origin-Agent-Cluster "?1" always;





    # Content Security Policy

    # See: https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP

    # Enforces https content and restricts JS/CSS to origin

    # External Javascript (such as cast_sender.js for Chromecast) must be whitelisted.

    # NOTE: The default CSP headers may cause issues with the webOS app

    add_header Content-Security-Policy "default-src https: data: blob: http://image.tmdb.org; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline' https://www.gstatic.com https://www.youtube.com blob:; worker-src 'self' blob:; connect-src 'self'; object-src 'none'; frame-ancestors 'self'";





    # Force SSL

    include conf.d/include/force-ssl.conf;



proxy_set_header Upgrade $http_upgrade;

proxy_set_header Connection $http_connection;

proxy_http_version 1.1;



access_log /config/log/proxy-host-4_access.log proxy;

error_log /config/log/proxy-host-4_error.log warn;



client_max_body_size 20M;



location = / {

        return 302 http://$host/web/;

        return 302 https://$host/web/;

    }



    location / {





        # Proxy main Jellyfin traffic

        proxy_pass http://$server:8096;

        proxy_set_header Host $host;

        proxy_set_header X-Real-IP $remote_addr;

        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_set_header X-Forwarded-Proto $scheme;

        proxy_set_header X-Forwarded-Protocol $scheme;

        proxy_set_header X-Forwarded-Host $http_host;



        # Disable buffering when the nginx proxy gets very resource heavy upon streaming

        proxy_buffering off;



proxy_set_header Accept-Encoding "";

sub_filter '</body>' '<script plugin="Jellyscrub" version="1.0.0.0" src="/Trickplay/ClientScript"></script>    </body>';

sub_filter_once on;

}



    # location block for /web - This is purely for aesthetics so /web/#!/ works instead of having to go to /web/index.html/#!/

    location = /web/ {

        # Proxy main Jellyfin traffic

        proxy_pass http://$server:8096/web/index.html;

        proxy_set_header Host $host;

        proxy_set_header X-Real-IP $remote_addr;

        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_set_header X-Forwarded-Proto $scheme;

        proxy_set_header X-Forwarded-Protocol $scheme;

        proxy_set_header X-Forwarded-Host $http_host;



proxy_set_header Accept-Encoding "";

sub_filter '</body>' '<script plugin="Jellyscrub" version="1.0.0.0" src="/Trickplay/ClientScript"></script>    </body>';

sub_filter_once on; 

    }



    location /socket {





        # Proxy Jellyfin Websockets traffic

        proxy_pass http://$server:8096;

        proxy_http_version 1.1;

        proxy_set_header Upgrade $http_upgrade;

        proxy_set_header Connection "upgrade";

        proxy_set_header Host $host;

        proxy_set_header X-Real-IP $remote_addr;

        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

        proxy_set_header X-Forwarded-Proto $scheme;

        proxy_set_header X-Forwarded-Protocol $scheme;

        proxy_set_header X-Forwarded-Host $http_host;

    }







  # Custom

  include /data/nginx/custom/server_proxy[.]conf;

}