nginx.conf

server {
    listen       80;
    server_name new.thinkjs.org www.thinkjs.org thinkjs.org hk.thinkjs.org;

    location ^~ /.well-known/acme-challenge/ {
        alias /home/welefen/www/www.thinkjs.org/www/challenges/;
        try_files $uri =404;
    }

    location / {
        if ( $host = 'hk.thinkjs.org' ){
            rewrite ^(.*) https://hk.thinkjs.org$1 permanent;
        } 
        rewrite ^(.*) https://thinkjs.org$1 permanent;
    }    
}

server {
    listen 443 ssl http2 fastopen=3 reuseport;
    server_name www.thinkjs.org thinkjs.org;
    set $node_port 7777;

    root /home/welefen/www/www.thinkjs.org/www;

    access_log /home/welefen/www/nginx_logs/www.thinkjs.org.log;
    
    keepalive_timeout   70;

    ssl_certificate /home/welefen/www/www.thinkjs.org/ssl/chained.pem;
    ssl_certificate_key /home/welefen/www/www.thinkjs.org/ssl/domain.key;
    ssl_protocols       TLSv1 TLSv1.1 TLSv1.2;
    ssl_ciphers "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA";
    ssl_prefer_server_ciphers on;

    # openssl dhparam -out dhparams.pem 2048
    ssl_dhparam /home/welefen/www/www.thinkjs.org/ssl/dhparams.pem;

    ssl_session_cache   shared:SSL:10m;
    ssl_session_timeout 10m;

    ssl_session_ticket_key /home/welefen/www/www.thinkjs.org/ssl/tls_session_ticket.key;
    ssl_session_tickets on;

    ssl_stapling             on;
    ssl_stapling_verify      on;
    ssl_trusted_certificate  /home/welefen/www/www.thinkjs.org/ssl/startssl_trust_chain.crt;

    resolver                 114.114.114.114  valid=300s;
    resolver_timeout         10s;

    add_header x-Content-Type-Options nosniff;
    add_header X-Frame-Options deny;
    add_header Strict-Transport-Security "max-age=16070400";

    index index.js index.html index.htm;
    if ( -f $request_filename/index.html ){
        rewrite (.*) $1/index.html break;
    }
    if ( !-f $request_filename ){
        rewrite (.*) /index.js;
    }
    location = /index.js {
        proxy_http_version 1.1;
        proxy_set_header Connection "";
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-NginX-Proxy true;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
        proxy_pass http://127.0.0.1:$node_port$request_uri;
        proxy_redirect off;
    }

    location = /production.js {
        deny all;
    }

    location = /testing.js {
        deny all;
    }

    location ~ /static/other/icon/ {
        expires 1h;
    }
    location ~ /static/ {
        expires max;
    }
}