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## do not remove trailing slash for ajax methods
    #RewriteCond %{REQUEST_URI} !(ctwoajax|ajax|customer|checkout|newsletter/subscriber/new)
RewriteCond %{REQUEST_URI} !(ajax|checkout/onepage|customer|newsletter|checkout|admin|contacts|payone|paypal)

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## remove trailing slash
#RewriteRule ^(.+[^/])/$ https://%{HTTP_HOST}/$1 [R=301,L]
RewriteCond %{REQUEST_METHOD} !POST
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} (.+)/$
RewriteRule ^ %1 [L,R=301]
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