Friendly URL not working on NGNIX web server

Add these directives inside your NGNIX server configuration.

location / {    try_files $uri $uri/ /index.php?$args;
}
location ~ ^/viewer/(ajax|content|css|geoimages|geojson|header|icons|images|js|logos|map_styles|marker_images|vendor)/ {
}
location /viewer/ {    rewrite ^/viewer/(.+?)/?$ /viewer/index.php?furl=$1 last;
}
location ~ ^/showcase/(css|js)/ {
}
location /showcase/ {    rewrite ^/showcase/(.+?)/?$ /showcase/index.php?furl=$1 last;
}