<IfModule mod_rewrite.c>
               RewriteEngine on
               RewriteCond %{REQUEST_FILENAME} -s [OR]
               RewriteCond %{REQUEST_FILENAME} -l [OR]
               RewriteCond %{REQUEST_FILENAME} -d
               RewriteRule ^.*$ - [NC,L]
               RewriteRule ^(.*) index.html [NC,L]
</IfModule>