nginx host static files, add trailing slash when using implicit index.html, preserve anchors and queries

example.com.conf

server {
	listen 443 ssl http2;
	listen [::]:443 ssl http2;
	server_name example.com;

	# ends in slash
	location ~ ^([^#?]*/)([#?].*)?$ {
		root /var/www/example.com;
		try_files $1/index.html =404;
	}

	# ends in extension
	location ~ ^([^#?]*\/[^#?\/][^#?\/.]*\.[a-zA-Z0-9]+)([#?].*)?$ {
		root /var/www/example.com;
		try_files $1 =404;
	}

	# ends in bare path
	location ~ ^([^#?]*\/[^#?\/]+)([#?].*)?$ {
		return 302 $1/$2;
	}
}