JavaScript knows

docker/.htaccess

@@ -1,5 +1,4 @@
 <Files *>
 	Order Allow,Deny
 	Deny from All
-	RewriteRule ^(.*[^/])$ $1/ [R=301,L]
 </Files>

index.php

@@ -31,6 +31,11 @@
   with Code#0 <a href="https://codefirst.iut.uca.fr/home"><img src="/images/CodeFirstLogo.png" alt="Code#0" height="40px"/>
   </a></address>
 </footer>
-
+<script>
+// If current url does not end with a slash, add it
+if (!window.location.href.endsWith('/')) {
+  window.location.href = window.location.href + '/';
+}
+</script>
 </body>
 </html>