nginx.conf

# Expires map
map $sent_http_content_type $expires {
    default                    off;
    text/html                  epoch; # We don't cache the html for the browser to get the content
    text/css                   max;
    application/javascript     max;
    ~image/                    max;
    ~font/                     max;
}

server {
    listen 80;

    server_name _;

    expires $expires;

    gzip  on;
    gzip_disable "msie6";

    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_min_length 256;
    gzip_types text/plain text/css application/json application/x-javascript application/javascript text/xml application/xml application/xml+rss text/javascript application/vnd.ms-fontobject application/x-font-ttf font/opentype image/svg+xml font/woff2 image/x-icon;

    charset utf-8;

    location / {
        root   /app/dist/client/;
        try_files $uri $uri/index.html =404;
    }

    location /survey {
        return 302 https://forms.reform.app/oSTwrh/vikunja-feedback;
    }

    error_page 404 /404.html;
    error_page 500 502 503 504  /50x.html;

    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    location /api/ {
        proxy_http_version 1.1;
        proxy_set_header Host $http_host;
        proxy_set_header Scheme $scheme;
        proxy_set_header SERVER_PORT $server_port;
        proxy_set_header REMOTE_ADDR $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Upgrade $http_upgrade;

        proxy_pass http://127.0.0.1:4321;
    }
}