How can I add a trailing slash to TYPO3 v9 URLs?

Question

When updating from TYPO3 8.7 to TYPO3 9.5 you might drop the realurl extension in favor for the new routing feature.

But you might notice, that realurl appended a / to a

Answer 1

Additional to the answer from Tim Schreiner, i made a condition in the .htaccess file, which redirects urls whithout slashes to the url with trailing slash. Files should not be affected by this condition. Following condition did i add to the .htaccess file:

# EXTRA: Enforce trailing slash. Ignore trailing slash on file endings 
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteCond %{REQUEST_FILENAME} !\.(gif|jpg|png|jpeg|css|js|xml|rss|txt)$ [NC]
RewriteCond %{REQUEST_URI} !\.(gif|jpg|png|jpeg|css|js|xml|rss|txt)$ [NC]
RewriteRule ^(.*[^/])$ /$1/ [L,R=301]