Reverse proxy nginx to itself
Just a guess.
Do you want to serve something on /?
If not - it is easy:
server{ listen 80; server_name localhost; location /support/ { alias /var/www/html/; try_files $uri $uri/ /index.html; } location / { return 303 http://localhost/support$request_uri; }}Fiddle around with the ending slashes if it does not work (using them - or not - makes often a difference).
Use alias instead of root so that /support is not added to the /var/www/html folder.
Everything gets redirected to /support.
If you want to serve something on / which is different from /support:
Use sub_filter or subs_filter in /support to rewrite your source code links on-the-fly so that they will never use /.
If you have redirects inside your source code (or proxy_pass backend) - you need proxy_redirect and/or Lua to catch and change them on-the-fly.