Make sure to disable following methods in webserver.

# Disabled TRACE|TRACK|PUT|OPTIONS|DELETE|HEAD
     <Directory /var/www/html >
        AuthType None
        Satisfy Any
        Allow from all
        RewriteCond %{REQUEST_METHOD} ^(TRACE|TRACK|PUT|OPTIONS|DELETE|HEAD)
        RewriteRule .*$ - [F,L]
     </Directory>