In Nginx web servers, most of us might have came across a situation where our sub folder access wont work some times and if we add a trailing slash , it start to work
ie
http://domain.com/sub-folder wont work
when http://domain.com/sub-folder/ works.
Fix add a redirect rule to auto insert the trailing slash – here is the code for that
rewrite ^/([^.]*[^/])$ $1/ permanent;