Apache vhost double slash on redirects - apache

Question

I was trying to force the FQDN and HTTPS via Apache Vhost redirects in a Laravel application behind a reverse Proxy. My problem now is that the user sometimes gets redirected to a URL with double slash e.g. https://exampledomain.xy//test instead of https://exampledomain.xy/test and I'm not sure why.
Here is my apache vhost configuration:
<VirtualHost *:80>
ServerName localhost
ServerAdmin webmaster#localhost
DocumentRoot /var/www/html/public
<Directory /var/www/html>
AllowOverride All
</Directory>
ErrorLog /dev/stderr
TransferLog /dev/stdout
RewriteEngine on
RewriteCond %{HTTP_HOST} !=localhost
RewriteCond %{HTTP_HOST} !=127.0.0.1
RewriteCond %{REMOTE_ADDR} !=127.0.0.1
RewriteCond %{REMOTE_ADDR} !=::1
RewriteRule (.*) https://exampledomain.xy/$1 [L,R=301]
</VirtualHost>
<VirtualHost *:80>
ServerAdmin webmaster#localhost
DocumentRoot "/var/www/html/public"
ServerName exampledomain.xy
</VirtualHost>
And my .htaccess file (default .htacces file that comes with Laravel)
<IfModule mod_rewrite.c>
<IfModule mod_negotiation.c>
Options -MultiViews
</IfModule>
RewriteEngine On
# Redirect Trailing Slashes If Not A Folder...
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)/$ /$1 [L,R=301]
# Handle Front Controller...
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [L]
# Handle Authorization Header
RewriteCond %{HTTP:Authorization} .
RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]

Answer 1

Okay looks like I fixed the issue. I changed the following in my config:
RewriteCond %{HTTPS} !on
RewriteRule ^(.*)$ https://stk-support.ukl.uni-freiburg.de$1 [R=301,L]
The extra slash in the rewrite rule was causing the issue and I also added a HTTPS rewrite condition.