default.conf

server {
    listen       80;
    server_name  localhost;

    # enable gzip compression of simple text files when transmitting to clients
    # that can handle gzip/deflate responses.
    # do not gzip json files because range requests to .json files made by browser js
    # applications like archive.org/details/webshots-freeze-frame-index get whole object,
    # not the range
    gzip on;
    gzip_types "text/html; charset=utf-8" text/html text/plain text/javascript application/x-javascript application/javascript text/css text/csv text/xml application/xml;

    # add charset info to Content-Type header for text files
    # by default, will apply to files with the following mime types:
    # text/(plain|html|xml|vnd.wap.wml), application/(javascript|rss+xml)
    # if we wish to apply it to additional mime types (say, application/json), we can add a charset_types directive
    # see https://nginx.org/en/docs/http/ngx_http_charset_module.html for more details
    charset utf-8;

    root   /usr/share/nginx/html;

    location / {
        index  index.html index.htm;

        # customizations:
        autoindex on;
        add_header  Access-Control-Allow-Origin  *;
        add_header  Access-Control-Allow-Methods  GET,POST,OPTIONS;
        add_header  Access-Control-Allow-Headers  Accept-Encoding,Accept-Language,Authorization,Cache-Control,Content-Length,Content-Range,DNT,Pragma,Range,X-Requested-With;
        add_header  Vary  Origin;
    }

    # customization - like 1st location, but with `Content-Encoding` header
    location ~ \.gz$ {
        add_header  Access-Control-Allow-Origin  *;
        add_header  Access-Control-Allow-Methods  GET,POST,OPTIONS;
        add_header  Access-Control-Allow-Headers  Accept-Encoding,Accept-Language,Authorization,Cache-Control,Content-Length,Content-Range,DNT,Pragma,Range,X-Requested-With;
        add_header  Vary  Origin;

        add_header  Content-Encoding gzip;

        location ~ \.(js|wasm)\.gz$ {
            # these files additionally need specific content type
            types { }
            default_type  application/javascript;
        }
    }

    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }
}