Change the virtual host configuration (typically found in /etc/nginx/conf.d/vhosts.conf) by providing the following location's:

General nginx virtual host configuration information can be found here: Getting Started with Nginx

server {
    listen 80 default_server;
    server_name /var/www/;

    root /var/www/;
    index index.html index.htm;      

    location ~* \.(?:manifest|appcache|html?|xml|json)$ {
      expires -1;
      # access_log logs/static.log; # I don't usually include a static log

    location ~* \.(?:css|js)$ {
      try_files $uri =404;
      expires 1y;
      access_log off;
      add_header Cache-Control "public";

    # Any route containing a file extension (e.g. /devicesfile.js)
    location ~ ^.+\..+$ {
      try_files $uri =404;

    # Any route that doesn't have a file extension (e.g. /devices)
    location / {
        try_files $uri $uri/ /index.html;

react-router documentation: Configuring Your Server

Managing Pushstate with Backbone and nginx