This is an excerpt of the configuration of my Apache 2.4.37 webserver on Centos 8.
File /etc/httpd/conf.d/mysite.conf:
<VirtualHost *:80>
ServerName mysite.com
DocumentRoot "/var/www/html"
RewriteEngine on
RewriteCond %{SERVER_NAME} =mysite.com
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]
</VirtualHost>
File /etc/httpd/conf.d/mysite-ssl.conf:
<IfModule mod_ssl.c>
<VirtualHost *:443>
ServerName mysite.com
DocumentRoot "/var/www/html"
Include /etc/letsencrypt/options-ssl-apache.conf
SSLCertificateFile /etc/letsencrypt/live/mysite.com/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/mysite.com/privkey.pem
ErrorDocument 403 /error403.html
ErrorDocument 404 /error404.html
ErrorDocument 405 /error405.html
ErrorDocument 500 /error500.html
RewriteEngine on
# First rule block
RewriteRule ^/$ /index.php [R,L]
# Second rule block
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /(([^/]+/)*([^/.]+))\.php[\ ?]
RewriteRule \.php$ /%1/ [R=301,NC,L]
RewriteRule ^(.*)/$ /$1.php [NC,L]
Header always set Strict-Transport-Security "max-age=63072000; includeSubDomains"
TraceEnable off
</VirtualHost>
</IfModule>
The second rule block is taken from here and rewrites all URLs https://mysite.com/anypage.php to https://mysite.com/anypage/, hiding PHP file extensions and making permalinks nicer to see.
I've added the first rule block after noticing that the solution suggested in the link had a bug -- that is, URL https://mysite.com/ returned a File not Found. Now it works.
However, a minor annoyance is that https://mysite.com/ redirects to https://mysite.com/index/ (since it loads the file index.php).
My question: How can this configuration be changed so that the URL https://mysite.com/ stays the same?