server {
    listen 80;
    root /usr/share/nginx/html;
    index index.html;

    gzip on;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml text/javascript;

    location = /index.html {
        add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate" always;
        add_header Pragma "no-cache" always;
        add_header Expires "0" always;
        try_files /index.html =404;
    }

    location / {
        add_header Cache-Control "no-store, no-cache, must-revalidate, proxy-revalidate" always;
        add_header Pragma "no-cache" always;
        add_header Expires "0" always;
        try_files $uri $uri/ /index.html;
    }
}