default.conf

server {
    listen       80;
    server_name  localhost;

    gzip on;
    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;
    gzip_proxied  any;
    gzip_vary on;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;

    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
				set $cors '';
				if ($http_origin ~ '^(https?://(.+\.konecty\.com|localhost|.+\.rocket\.chat)(?::\d{1,5})?)$') {
								set $cors 'true';
				}

				if ($cors = 'true') {
								add_header 'Access-Control-Allow-Origin' "$http_origin" always;
								add_header 'Access-Control-Allow-Credentials' 'true' always;
								add_header 'Access-Control-Allow-Methods' 'GET, POST, PUT, DELETE, OPTIONS' always;
								add_header 'Access-Control-Allow-Headers' 'Accept,Authorization,Cache-Control,Content-Type,DNT,If-Modified-Since,Keep-Alive,Origin,User-Agent,X-Requested-With' always;
								# required to be able to read Authorization header in frontend
								#add_header 'Access-Control-Expose-Headers' 'Authorization' always;
				}

				if ($request_method = 'OPTIONS') {
								# Tell client that this pre-flight info is valid for 20 days
								add_header 'Access-Control-Max-Age' 1728000;
								add_header 'Content-Type' 'text/plain charset=UTF-8';
								add_header 'Content-Length' 0;
								return 204;
				}

				location / {
					try_files $uri /index.html;
				}
				
    }

}