RewriteEngine On
RewriteCond %{REQUEST_URI} /(.+)/$
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ https://www.mertlabs.com/%1 [R=301,L]

RewriteCond %{QUERY_STRING} (.+)/$
RewriteRule (.*)$ https://www.mertlabs.com/$1?%1 [R=301,L]

RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^(.+)/$ https://www.mertlabs.com/$1 [R=301,L]

RewriteCond %{HTTP_HOST} ^www.(.*)$ [OR,NC]
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://www.mertlabs.com/$1 [R=301,L]